
Spoiler Warning: There are spoilers ahead for Star Trek: Discovery Seasons 1-4, Star Trek: Picard Season 1, Short Treks, and for other iterations of the Star Trek franchise.
Although this week’s episode, Choose To Live, mostly stayed away from the gravitational anomaly – or the “DMA,” as Stamets is now calling it – we did get some theory-crafting ideas out of it! At such an early point in the season the story still feels wide open, able to go in potentially many different directions. Will tracking down and figuring out the DMA be the only main story of the season? Or will things take a turn as more information about the DMA comes to light? That’s perhaps the biggest question I have as things currently stand!
This week we had no theories confirmed and just one that was debunked. As always, we’ll start there and then move into the main list.
Debunked theory:
Gray’s transfer to a new body won’t be simple.

In episode 2, Anomaly, we heard from Adira and Dr Culber that the plan was for Gray to be given a synthetic body – just like Admiral Picard was at the end of Picard Season 1. Because this seemed to come at such an early point in the season, and because Gray’s story of being seen – and its allegory for being transgender – had been discussed a lot in the run-up to the season, I felt sure that it couldn’t possibly be so simple. But I was wrong!
In Choose To Live, Gray made it into his new synthetic body with relative ease. There was a moment midway through when the procedure seemed to be taking a long time, but by the end of the episode he was awake and able to exercise full control over his synthetic body.

As I said in my review of Choose To Live, I felt that this story came too early in the season, and with too much of the work to get there having happened off-screen. It was also noteworthy that Stamets was entirely absent from this story, despite the deep bond he has with Adira in particular. I’m optimistic that Gray’s incorporation will allow him to take part in a wider range of stories both with and without Adira, and the emotional highs of Gray’s incorporation were very sweet. But at the same time, I admit to feeling a little underwhelmed at the fact that the story I was most interested in on a personal level only lasted three episodes before being wrapped up – especially considering that it barely featured in the first two.
So that theory was debunked.
Up next we’ve got the main theory list – and it’s divided into two parts. The first part of the list is comprised of theories that are either brand-new from Choose To Live or which the episode advanced somehow from previous weeks. The second part of the list contains the rest of my Season 4 theories – the ones that didn’t move at all in Choose To Live.
Theory #1:
The Abronians’ homeworld was destroyed by the anomaly.

After arriving at the Abronians’ cryo-ship, Michael Burnham found a stone carving that seemed to depict the destruction of the Abronians’ homeworld. This carving was only shown on screen briefly, but it seemed to show the planet being damaged or destroyed in a large explosion. Burnham credited the planet’s destruction to a “supernova,” and the story then raced ahead.
Considering that the main thrust of the season so far has been about the DMA, perhaps Burnham was incorrect: the Abronian homeworld was destroyed by the anomaly, not a supernova. I suspect we haven’t seen the last of the Abronians; Discovery loves to tell semi-standalone stories and then bring back elements from those stories later on, so we may yet come to learn more about the Abronians.
Theory #2:
The Abronians’ homeworld was on the “other side” of the anomaly.

One clip in the second Season 4 trailer appeared to show Captain Burnham leading the USS Discovery inside the DMA. We don’t yet know what that means, nor to what extent words like “inside” the anomaly or “the other side” of the anomaly are relevant. But many times in past iterations of Star Trek we’ve seen things like wormholes and gateways to parallel universes. Perhaps the anomaly is something similar – and passing through it leads to such a place.
One thing struck me as odd about the Abronians: the Federation was entirely unaware of them. Yet the Abronian cryo-ship was relatively close to Federation space – such that Captain Burnham could reach it using Book’s ship in a short span of time. It’s possible that the Abronians had been asleep for millennia, unnoticed by the Federation and the wider galaxy for all that time. But it’s also at least possible that their cryo-ship is a newcomer to the area. If so, perhaps it arrived here via the DMA.
Theory #3:
The Abronians will return to help the Federation later in the season.

One of the themes of Discovery since Season 3 has been connection: building connections between the Federation and its former friends. The Abronians were awoken from cryo-sleep thanks to the interventions of Captain Burnham and Tilly – at least in part – and they may seek to repay the Federation, or Captain Burnham personally, for that help.
We saw this play out last season with Ni’Var; in the season finale Ni’Var ships raced to the Federation’s aid as the Emerald Chain attacked. Perhaps the Abronians will likewise step up to help when the Federation needs allies.
Theory #4:
The Abronians’ moon-ship may be useful in a later story.

At this stage I can’t envision precisely what use Captain Burnham and the crew might have for a moon-sized starship… but that doesn’t mean such a need won’t arise! The Abronians’ cryo-ship is huge, and at least superficially seems to have the mass of a moon or small planetoid. If Captain Burnham and the crew needed something that large for some purpose, perhaps they’ll return and either take it or negotiate for it.
As we saw in Choose To Live, the moon-ship was in full working order. All it needed was some extra dilithium to power up and it was perfectly capable of moving under its own power, and its computer systems were still functional. The only system that seemed to have failed was the wake-up timer! So if – for reasons yet unknown – the crew need a huge starship, perhaps we won’t have seen the last of the moon-ship.
Theory #5:
Three ideas about Tilly.

What’s going on with Tilly? Since the season began, and arguably toward the end of Season 3 as well, she’s been very unsettled and unsure of her role. Perhaps that’s a metaphor for the Discovery writers not knowing what direction to take her character – though I would argue that she’s well-placed to help out with such a scientific mystery! She even has experience with dark matter, as we saw in Seasons 2 and 3, so shouldn’t she be helping out Stamets?
Regardless, Tilly has talked about wanting to get outside her comfort zone and try new experiences. Perhaps her short tenure as first officer last season is part of what prompted her to do so. However, the question of her destination at the end of this arc has arisen. Will she try out a few new things over the course of the season and then settle back down again? Or will we see a more significant change for Tilly before Season 4 is over?
Theory #5a:
Tilly will change departments.

The simplest solution to Tilly’s restlessness may be a career change. Having had a taste of command, perhaps she’ll want to retrain in the command division with a view to working her way back up to first officer or even pursuing her own captaincy. That would be one way to go. Perhaps she’ll want to move over to a medical field, using her scientific expertise to help people. Or maybe she’ll want to move into engineering, where she could focus on the practical side of running a starship. There are other possibilities too, of course – but I think we can rule out a role in security or tactical after Choose To Live!
Theory #5b:
Tilly will resign from Starfleet.

We should be careful with this one. Last season, Michael Burnham was the character who seemed to be on an anti-Starfleet trajectory, having spent a year alone and away from the confines of the organisation. But after a couple of twists and turns she ended up recommitting to Starfleet and even assumed the captaincy of the ship! But that said, one possible end to Tilly’s arc could be that she’ll leave Starfleet altogether. Some of the sentiments she’s expressed seem to indicate that she feels adrift, very far removed from Starfleet and her own past. Reaching for help from friends and finding a way through whatever she’s going through is the most likely solution… but she could go down a different path altogether and resign her commission.
Theory #5c:
Tilly will be killed off.

Sometimes when a character seems to lose their resolve it’s the writers’ way of signalling that it’s the beginning of the end. Adira has taken over not one but two of Tilly’s roles – at least in some respects. Tilly was once the baby of the crew; young and eager, fresh out of the Academy. Now Adira is in that role. Adira is also a great fit for scenes with Stamets in engineering, a role that Tilly had previously occupied. Perhaps Discovery’s writers feel that Tilly has done all she can, and that there isn’t going to be space for two functionally similar characters going forward?
Theory #6:
President Rillak knows what the anomaly is… and may be responsible for its creation.

President Rillak is the kind of hard-nosed political pragmatist who seems to be willing to do almost anything if she believes it will advance the Federation’s objectives and ambitions. We saw that laid bare this week when she was willing to turn over J’Vini to the Ni’Var authorities, overruling both Admiral Vance and Captain Burnham because she believed the Federation’s best interests lay in wooing Ni’Var back into the fold.
This ties into something that I said last time: that President Rillak might know more about the DMA than she’s currently letting on. If the Federation had created a weapon like this, or it was an experiment gone wrong, covering it up might be her objective even if she wasn’t necessarily the one who ordered the DMA’s creation.

We’ll consider in a moment a few other possible candidates for creating the DMA – if it turns out to be an artificial creation. But the Federation – and by extension, President Rillak – have to be possible contenders too. Season 3 of Discovery showed us the Federation at its weakest, but also arguably as an organisation that was still virtuous at its core. In contrast, we have Season 2’s depiction of Starfleet: reliant on the shady Section 31 and their AI. In short, it wouldn’t be unthinkable for Discovery to go back to that kind of presentation.
President Rillak herself is a character with depth, not simply an “evil admiral” character trope. But it wouldn’t be the first time that Discovery has presented us with a fairly hard-line character in a position of authority who turns out to be concealing a dark secret.
So those theories are new or were advanced in some way by Choose To Live.
As always, for the sake of keeping everything in one place, I’ll restate my previous theories below. If you missed any of them last time, be sure to read the full list! If you’re all caught up, feel free to skip ahead.
Theory #7:
Captain Burnham and/or the Red Angel time travel suits from Season 2 are connected to the anomaly.

Though we did see some moves away from Discovery’s laser-focus on Michael Burnham in Season 3, the show has put her front-and-centre in all of its main storylines so far. Season 2’s Red Angel storyline was connected to Burnham in a major way, and I wonder if Burnham might similarly have some kind of connection to the anomaly that she’s currently unaware of.
Perhaps the Red Angel suit, which Burnham sent back in time in the Season 3 premiere, malfunctioned somehow, and its powerful wormhole-creating technology gave rise to the gravitational anomaly. If the Red Angel suit completed its journey back to the 23rd Century, the anomaly may have had centuries to grow and expand unchecked.

I’m not sure that this one is particularly likely, but as I said last year about a possible Burnham connection to the Burn, not only does Discovery kind of have a precedent for telling this kind of story, but there would also be something very dramatic about this revelation. In this case, Burnham would be indirectly and unknowingly responsible for creating something devastatingly damaging. How would she react to that, and how would Book react given what’s just happened to Kwejian?
If time travel is involved, perhaps a future Captain Burnham or a parallel universe Captain Burnham could be responsible for the anomaly’s creation – either intentionally or not.
Theory #8:
Book will find Kyheem and Leto inside the gravitational anomaly.

In Star Trek: Generations, Captain Picard encountered Captain Kirk inside the Nexus – despite Kirk being declared “dead” after the Enterprise-B encountered the energy ribbon. We don’t know what the gravitational anomaly is yet; one of my very early pre-season theories involved the Nexus, but that seems to be debunked already! However, the anomaly’s mysterious nature raises the faint possibility that at least some of those it appears to have “killed” may not be as dead as they first appear.
This theory is, I freely admit, a bit of a long-shot. And it hinges on a fundamental question underlying the story of the season: is there more to the gravitational anomaly than meets the eye? If the anomaly is just an extreme example of space weather, flitting through Federation space destroying anything unfortunate enough to be in its way, then probably everyone on Kwejian is dead. But if the anomaly harbours some kind of gateway, wormhole, portal, time vortex, or any of the other Star Trek-y technobabble phenomena that we’ve seen across the franchise’s history, then it’s possible that at least some of the folks on Kwejian found themselves transported to whatever realm lies inside of the anomaly.
Theory #9:
The gravitational anomaly is (or contains) a sentient life-form.

“It was only trying to communicate!” has become a Star Trek cliché, often used to describe how the seemingly-aggressive actions of an alien life-form are actually something innocuous. Perhaps the same is true of the gravitational anomaly: at its core is a life form, perhaps one not dissimilar to the Sphere seen in Season 2, and it’s on its own mission of exploration.
V’Ger from The Motion Picture is an interesting comparison. Like the gravitational anomaly, V’Ger was massive in size, capable of destroying space stations, fleets of ships, and even threatening to destroy entire planets. When Admiral Kirk and the crew of the Enterprise were able to figure out V’Ger, however, they found a life-form at its core, one which was just as curious to learn and grow as they were.
Theory #10:
Saru will be given the captaincy of the USS Voyager-J.

Saru’s future was briefly discussed before he offered to serve as Captain Burnham’s first officer in the episode Anomaly. He has already been offered a command of his own, so Starfleet clearly values his command abilities and experience. President Rillak was seen to be assessing Captain Burnham’s suitability for the captaincy of the USS Voyager-J in Kobayashi Maru… and she mentioned having a shortlist of candidates. Could Saru be on her list?
At time of writing, a fifth season of Discovery hasn’t been officially confirmed. But if the show is to run for another season – or more – the question of Saru’s role comes up. It would be possible to work out a way to keep him on board as first officer for longer than one season, and in many ways I think that’s something fans would want to see. But at the same time, from an in-universe point of view, it kind of makes sense for Starfleet to use its experienced captains where possible.

Several of the qualities that President Rillak said she was looking for in a potential captain seem to apply to Saru. He’s more level-headed, less likely to put himself in a dangerous situation, and more inclined to think of the big picture. He has a weakness when it comes to Kaminar, as we saw toward the end of Season 3, but generally speaking he isn’t someone who lets his emotions get the better of him. His wisdom and calm demeanour could be valuable in the captain’s chair of the Federation flagship.
If Saru did depart Discovery in a future episode or season, could that perhaps set the stage for Star Trek: Saru… or Star Trek: Voyager-J? That’s a very interesting possibility! One element of Season 3 that I felt didn’t really get as much attention as it might’ve was that Saru was the Star Trek franchise’s first non-human captain (in a leading role). There’s perhaps scope to follow him on another adventure sometime in the future.
Theory #11:
The gravitational anomaly is a superweapon.

We touched on this theory above when we considered the Federation’s possible complicity in the creation of the gravitational anomaly, but there are many other ways such a story could pan out. The anomaly’s unpredictable nature, as noted by Tilly and Saru at the end of Anomaly, could imply that there’s an intelligence at work, perhaps dictating the anomaly’s moves. This could be the anomaly itself as suggested above, but it could also be the case that the anomaly is being controlled or manipulated by something or someone externally.
If the anomaly turns out not to be a natural phenomenon, and is indeed deliberately targetting the Federation, who might the possible culprits be? And what would be the purpose behind attacking the Federation in this manner? If it’s the precursor to an invasion, perhaps later in the season we’ll see whoever is responsible making their next move.
Theory #11a:
The Borg are responsible.

We don’t know whether the Borg Collective still exists in the 32nd Century; it hasn’t even been mentioned since the USS Discovery’s arrival. However, out of all of the factions in Star Trek, few seem capable of creating a weapon on the scale of the gravitational anomaly. This wouldn’t be in line with the Borg’s usual modus operandi, as they prefer to assimilate rather than attack from afar. But a lot may have changed in the centuries since we last encountered them, meaning this could be the opening salvo of a Borg attack… or the last gasp of a dying Collective.
Theory #11b:
The super-synths from Picard Season 1 are responsible.

We still don’t know very much about the super-synths that Soji and Sutra attempted to contact in the Season 1 finale of Star Trek: Picard. Other than claiming to offer support and help to synthetic life, what are their goals and motivations? Was their offer even genuine, or was it a trap? The mechanical tentacles glimpsed in Picard Season 1 looked terrifying! Moreover, we know that the super-synths have the technology to move stars – something only possible with an advanced understanding of gravity. Creating a stable 8-star octonary system is an incredible technological and gravitational feat, so they have precedent of a sort when it comes to working with gravity. Finally, Discovery Season 4 has already made connections with Picard Season 1: the Qowat Milat and the synth transfer process used for Gray.
Theory #11c:
The Kelvan Empire is responsible.

This one might seem to come completely out of the blue! In The Original Series, Captain Kirk met representatives of the Kelvan Empire, a faction originally from the Andromeda galaxy. Seeking a new home, a Kelvan scouting party had reached the Milky Way and were looking for worlds to conquer. Kirk would ultimately dispatch an unmanned starship offering to help the Kelvan Empire find new worlds to settle – but what if his offer was rejected? Given the vast distances involved, the timelines kind of line up for the Kelvan Empire to return to the Milky Way.
Theory #11d:
The Sphere-Builders from Enterprise are responsible.

A defeated faction in one of the Temporal Wars, the Sphere-Builders initially hoped to convert a large swathe of the Alpha Quadrant to match their native extradimensional realm, and constructed a number of large space stations known as Spheres to facilitate this transformation. Crewman Daniels would tell Captain Archer that the Sphere-Builders were defeated in the 26th Century, but could they have since rebuilt? The gravitational anomaly isn’t necessarily the same as what they were trying to do with the Spheres, but they’re one of the few factions in Star Trek that might be capable of creating a weapon on this scale.
Theory #12:
A major character will be killed.

Season 3 saw a couple of major departures: Mirror Georgiou entered the Guardian of Forever’s portal, and Nhan remained behind aboard the USS Tikhov. Yet despite the dangers the crew faced as they navigated the 32nd Century, battled the Emerald Chain, and figured out the mysteries of the Burn and the Verubin Nebula, only one ally – Ryn – lost their life.
Killing off a character can be an excellent way to communicate the stakes involved if it happens at a relatively early stage. It can also be a storyline that brings a lot of emotion, as we have to say goodbye to a beloved member of the crew.

In short, I think there are plenty of reasons on the production side why killing off a major character could make sense in Season 4. Discovery has seen a number of characters leave the series – far more than any past Star Trek show, in fact – but the series’ death toll is still relatively low when compared to many other modern television shows.
We discussed above that Tilly’s recent change and the way she seems unsettled could be the beginnings of such an arc. For a breakdown of which characters I thought might be in danger before the season premiered, check out my list of “death predictions” by clicking or tapping here.
Theory #13:
There will be a character crossover from a past iteration of Star Trek.

This theory returns from Season 3, where I doggedly clung to it for the entire season!
The show’s 32nd Century setting has shot Captain Burnham and the crew far beyond anything in Star Trek’s established canon, and that should mean that practically everyone we remember from other Star Trek shows won’t be around any longer. But this is Star Trek – with some creatively-written technobabble, practically any major character could have survived all the way through to the 32nd Century!

It’s also possible for Captain Burnham to discover the logs of a long-dead officer; someone we as the audience would be familiar with. While this would be less of a “crossover” than if a character from the past could be physically present, it would still be a lot of fun to see!
There are a handful of characters who could have survived to the 32nd Century based on what we know about them from past iterations of the franchise. Included in this category would be people like Soji, Voyager’s Doctor, and a few others. But as we’ve seen in episodes like Relics and even the film Generations, all it would take to make a big crossover happen is some kind of temporal anomaly, stasis field, or other technobabble!
Theory #14:
Burnham won’t remain as captain.

This is a controversial one, so let me just say up front that I’m neither in favour of this theory nor opposed to it – I just think it’s a possibility. As things stand, Discovery has had four different captains across its four seasons. One of the show’s unique points of interest within Star Trek’s broader canon are the very different ways in which these individual captains commanded the ship and crew.
It’s got to be considered at least a possibility, then, that the show will continue this trend. This doesn’t mean Captain Burnham will be killed off; I’d actually argue she’s pretty safe. But there are many different routes to her potentially leaving the ship, such as a desire for freedom that we saw in Season 3, or even perhaps taking up a new, more senior role within Starfleet.

If this theory were to come to pass, it would be something I’d expect to see at the very end of the season. Even if Burnham seems 100% committed to her new role as captain, I don’t think it’s a theory we can definitively rule out.
It’s worth mentioning that at time of writing Discovery hasn’t been officially renewed for a fifth season – so all this talk of who’ll be in the captain’s chair by then could be moot! And of course this theory has a very strong counter-argument: that Discovery’s main story arc across its first three seasons can be read as Burnham’s ascent to the captain’s chair.
Theory #15:
Kovich is an agent (or the head) of Section 31.

This is another Season 3 theory that I’m choosing to bring back! The question of who Kovich is and what role he played in Starfleet and the Federation was left open at the end of Season 3, and we know that the character will return in some capacity – even though he’s yet to make an appearance. As someone who seemed to talk around the issue at hand and not reveal everything he knew, Kovich strikes me as potentially being a Section 31 operative – or even the head of the organisation.
We don’t know yet if the Section 31 series that was announced in 2019 will go ahead as planned. But if it does, there could potentially be a connection between Kovich and Georgiou that would tie the two shows together. Kovich is mysterious enough that his character could be taken in many different directions – but my money’s on Section 31.
Theory #16:
The ban on time travel will be explained in more detail.

This one is a hope as much as a theory right now! In short, the ban on time travel was introduced early in Season 3 primarily as a way for the writers and producers to avoid questions about why the 32nd Century was so different from how the far future had been depicted in earlier Star Trek productions, as well as to explain things like how the Burn was able to catch the Federation off-guard and why Georgiou couldn’t simply be sent back in time when she needed to.
But the ban itself raises some issues – the biggest one being the lack of detail on how it works and how something like this could possibly be enforced. As I said several times last season, it isn’t possible to just un-invent a technology so useful and powerful as time travel. Even just a few lines of dialogue going into a little more detail on the mechanisms involved in the ban would be really useful.
Theory #17:
The Federation has flouted the ban on time travel.

Sticking with the time travel ban, another theory I had last season was that the Federation – and Section 31 in particular – might have deliberately flouted the ban and failed to abide by the rules. Someone as straight-laced and committed to Starfleet ideals as Admiral Vance is highly unlikely to have sanctioned such a move, but someone like the shadowy Kovich (who we talked about a moment ago) might have. President Rillak could also be involved.
Obviously the bulk of the season’s story will deal with the gravitational anomaly. But there’s scope to either talk about the time travel ban in a standalone episode or even tie the two stories together – perhaps the anomaly has been unleashed as a result of unsanctioned time travel.
Theory #18:
The story will connect with the Short Treks episode Calypso.

Despite a handful of moments in Season 3 which seemed to connect to Calypso, the story of the season overall ended up going in a very different direction. While we saw a couple of things that arguably did tie in to the Short Treks episode, major things like the USS Discovery undergoing a refit have actually moved the plot even further away.
It’s possible that Calypso will forever remain an outlier in Star Trek’s canon – an episode tied to a vision of Season 2 or Season 3 that was changed before it made it to screen. But earlier in Season 3 it felt like we were getting close to seeing how it could all be tied together – and I’m hopeful that Season 4 will find a way to do so.
Theory #19:
The crew will have to defend the Verubin Nebula.

The Federation is in a weakened state, and even if we see worlds like Ni’Var rejoin the organisation it’s still nowhere near as powerful as it once was. The Verubin Nebula is thus a very tempting target for anyone looking to gain an edge in a galaxy where dilithium is still in short supply. As the only known significant dilithium supply, whoever controls the Verubin Nebula will have a massive tactical advantage.
We can compare the Verubin Nebula to Deep Space Nine’s Bajoran wormhole in that respect – it’s a resource of huge strategic importance. Season 3 didn’t show us much about the makeup of the galaxy’s factions outside of the rump Federation and the Emerald Chain, but it’s got to be possible that factions like the Dominion, Klingon Empire, or even the Borg still exist and would want to seize the Verubin Nebula for themselves.

Season 4 has presented Captain Burnham and the crew with a scientific puzzle: the DMA. But that doesn’t mean there won’t be villains in play, and Discovery has introduced us to several compelling and interesting villains over its first three seasons.
To make a long theory short, it would begin to stretch credulity to think that everyone in the known galaxy would see the Federation rebuilding and having access to dilithium and not want to find out for themselves what’s going on. Once the Verubin Nebula’s existence becomes known, even if the Federation promises to share its bounty with all comers, it seems very likely that someone would want to take control of the dilithium supply for themselves.
Theory #20:
Captain Burnham and the crew will encounter the Klingons.

By the late 24th Century the Federation and Klingons were firm friends, having been allied for a century and after fighting side-by-side against the Dominion. We don’t know if that alliance endured to the 32nd Century, but it’s certainly plausible to think that it did. The Klingons might even have joined the Federation at some point, and their violent warrior culture may have been significantly pacified.
One thing that could be very interesting to see is how the crew of the USS Discovery – almost all of whom are veterans of the Federation-Klingon war – would respond to that. They’ve worked alongside Klingons like L’Rell before, but many of them still see the Klingons as an old enemy. The story of overcoming that prejudice could mirror episodes like The Wounded from The Next Generation, and would be very interesting to see.
Theory #21:
Some areas of the galaxy – such as the Delta Quadrant – avoided the worst effects of the Burn.

Season 4 touched briefly on the Burn with Su’Kal and Saru in Kobayashi Maru, and may now seek to put last season’s story to bed so it can wrangle with the DMA instead. But one thing I’d be curious to see is the true extent of the disaster – did it reach all four quadrants of the galaxy equally, or did its effects fade out after a certain point? Michael Burnham discovered that the Burn had a point of origin, and that it radiated out from that point like ripples on the surface of water. Ripples eventually diminish, fading away the further they travel, and perhaps that’s true of the Burn as well. There could be whole areas of the galaxy that didn’t even notice the Burn – and maybe the ship and crew will visit one such region.
If the Delta Quadrant was left largely unscathed, for example, what might that mean for the likes of the Borg? It’s possible they aren’t even still around in the 32nd Century, but it’s also possible that they’ve had more than a century to expand and build up their forces while the Federation suffered. To see a full write-up of this theory, click or tap here.
Theory #22:
The Guardian of Forever will be back.

Having reintroduced the Guardian of Forever in Season 3, I wouldn’t be at all surprised to see Discovery return to the Guardian’s planet in Season 4. The gravitational anomaly is something new and threatening, so it’s possible Captain Burnham might want to ask the Guardian for help or information.
The Guardian of Forever is also the only way we know of at present to travel through time – something that might be necessary if Season 4 makes an attempt to link up with Calypso in a big way. There are many reasons why Captain Burnham might want to revisit the Guardian, and it would be great to bring back actor Paul Guilfoyle, who played the Guardian’s humanoid avatar in Season 3.
So that’s it! Those are all of the theories I currently have as we approach episode 4: All Is Possible.

I think we’ve got an interesting crop of theories as we begin to get into the story of the season. In some ways Discovery caught me off-guard by taking Captain Burnham on a side-mission in only the third episode… but as noted above there are myriad ways that her encounter with the Abronians may yet come back into play!
I’ll be updating my theory list every week after publishing my episode reviews, so be sure to come back after All Is Possible has aired to see if we have any debunkings, confirmations, or brand-new theories to add to the list. I’m having a lot of fun getting back into the swing of writing my reviews and theories – I hope at least some of this has been interesting for you!
Star Trek: Discovery Season 4 is available to stream now on Paramount+ in the United States, Scandinavia, Latin America, and Australia. The show is on Pluto TV in the UK, France, Germany, Italy, and other parts of Western Europe at 9pm on Fridays and Saturdays. Individual episodes or the full season can be purchased on iTunes, Amazon Video, and possibly other platforms in the UK, parts of Europe, and select other countries. The Star Trek franchise – including Discovery and all other properties mentioned above – is the copyright of ViacomCBS. This article contains the thoughts and opinions of one person only and is not intended to cause any offence.