Here’s a ton of rumors for all the new Warhammer 40k codex books going into 2022 including Custodes, Genestealer Cults, Tau, Chaos, and Imperial Guard!
Well, obviously, these are all rumors… So, take them with however much salt you need, but most of them are from sources that have provided accurate information already.
With that said, let’s jump into the Warhammer 40k codex rumors starting with what could be coming first headed into 2022.
Warhammer 40k Rumors Custodes & GSC

Anyways, the timing would line up perfectly with what GW has laid out. This is both good and bad if you play the factions. It means they are getting a book sooner, but it also means they are only grabbing one new mini this time around. So it looks like Genestealer Cults will be joining Custodes soon.
Here’s the actual rumor from Reddit.
You may notice that there is not only everything in there about the Black Templars release, but they also predicted nail the Sisters and Tau release for Kill Team as well, both from a post over a month old!
Now the same source says the Custodes are getting something that the Warhammer world has been severely lacking, a new Lieutenant! Whereas the GSC will grab a Saboteur.
Custodes Rules Rumors
There are also rules rumors. Let’s take a look at the actual rules rumor from Reddit that is of bad image quality.

Adding army-wide heroic intervention could be a really cool idea, but they would need more if they tone down all their Stratagems. Bumping up the damage on weapons to D3 is seriously nice, especially bumping the Misericordia up to D2. It will make taking them basically an auto-include unless they go way up in points as well.
Again, these are all Warhammer 40k codex rumors, so we’ll have to wait and see on that!Â
Genestealer Cults Rumors

Overall, the changes to the deployment side of things just seem like something they needed, so let’s hope that all comes true. Gaining cult creeds would be super strong for everything and adding some strength to Rending Claws would give the army a nice boost. Next, we’ll get into the Chaos rumors, and there are a lot of them!
New Chaos Space Marines Codex Rumors
Originally posted on one of the large 40k forums, these Warhammer 40k codex rumors were taken down just before Games Workshop’s new codex roadmap post went live. Luckily it was reposted over on Imgur here.

There also seems to be a greater emphasis on updating the cultist/human line and most likely important in the faction. One of the unique things about Chaos is the presence of non-marine heretics. So it would be a unique space to expand on for the faction.

The deletion of the forum post might be someone asking it to get taken down or maybe even just the author decided to, we can’t know for sure.
Also of note, the recent WHC Codex Roadmap post mentioned this about Chaos:
Eagle-eyed heretics** may note the lack of codexes for the Traitor Legions. Do not despair, as 2022 will be a bumper year for warp-based shenanigans.
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This is a huge boon for chaos, as generic CSM has seemed to be on the backburner for the 9th edition. Assuming at least some of the rumors are true there’s huge potential for new additions and updates as the change to Primaris for loyalists seemed to have left Chaos in the dust.
World Eaters Codex coming for Chaos

They are one of the four main single-god devoted legions; Thousand Sons for Tzeentch, Death Guard for Nurgle, Emperor’s Children for Slaanesh, and World Eaters for Khorne. We assume why Games Workshop would release World Eaters before the whole CSM book is probably because people who play any of the devoted legions will also buy the CSM codex as well as any potential new models too.
Meaning they can keep the releases flowing to the same customer base. Plus it’s easier to release more models this way, with a big-sized mini (such as a Daemon Primarch or new vehicle kit) to build hype and new limited edition Army boxes.

As by far one of the most popular legions, it makes perfect sense that World Eaters get their own codex. Unlike undivided legions like Word Bearers or Black legion, the God-devoted ones have much more unique models and lore, making them better candidates for dedicated books, and new models.
This also makes sense with the new rumors we’ve heard, meaning Emperor’s Children would come after World Eaters and Chaos Space Marines proper later on in the 9th Edition release cycle. Or, they could easily have gotten the idea messed up, maybe it’s CSM, then World Eaters, then Emperor’s children.
Either way, let’s jump into the newest rumors!
RUMORS: App Update Points to New Chaos Codex Soon
GW has recently put Heldrake updates in the 4ok app, which may mean a number of things including a new codex book soon!

It could very well be that they just gave the programmer the new stats and they just put it in without knowing when it should go live, or even toggled the wrong one “live” and didn’t remove the “old” nomenclature from the title.
So again, why put it into the app if a book isn’t coming soon. While this isn’t the biggest thing ever, this along with the previous rumors really seem to point to a new book sooner than later!
New 40k Tau Codex & Models On The Way!

Next, it looks like they will receive a few other models other than just the Pathfinders with one being a plastic Darkstrider model. We’re not sure if these will also be upgrade sprues or brand new kits. However as we said before though, GW probably doesn’t need to give them a huge model update to get people to buy them.
They simply need rules that make them more fun not only to field but also play against and people will buy them. Right now they basically aren’t selling. Since the minis are so cool, it just comes down to rules to get them moving off store shelves. So hopefully in the update, they give them some fun mechanics.

Considering this and the confirmed Pathfinder update, a new codex may be more infantry-focused. That’s all we’ve heard so far, but a new codex in January, at least a couple more kits, and getting rid of Finecast is always a good thing.
RUMORS: New 40k Imperial Guard Regiments & Tank Models
First up, the rumors say the Imperial Guard will be grabbing a new codex book, which everyone already assumed by now probably. From the rumors, the book will contain two new regiments and the Catachans will not be squatted even though their models are almost as old as the Eldar ones.
While there is no clear indication yet about what the two “new “regiments are quite yet, that’s still pretty exciting. Next, it looks like the Cadians will be a veteran-style addition in the book.
For new models, rumors are that there will be two or more upgrade sprues for other regiments, much like the Cadian sprues. So while they won’t be grabbing entirely new models, they will be getting sprues to bring them into the new edition. Again, this is a double-edged sword. Getting new bits is awesome, but paying $45 for a single unit of Guardsmen can be pretty pricey.

There are also rumors for one more new unit as well, which may end up being the most impactful on the tabletop.
New Imperial Guard Tank

Supposedly a new tank fitting somewhere in between the Leman Russ and a Baneblade is on the way next for treadheads to collect.

RUMORS: Squats Army Returning to Warhammer 40k
Over the past few years, there have been some clues pointing to a possible Squat comeback. A triumphant return to the limelight could very well happen and we will be laughing with joy! Next to Plastic Sisters of Battle, Squats may be the next biggest hobbyist’s dream for a Warhammer 40k army release.

Now that we’ve got your hopes way too high, let’s look at everything SQUATs in Warhammer 40k we’ve seen so far, and then compare to the new rumors
What the Future Could Hold for Squats:

Now, talking about the gravitational field, we know that Squats (while they were canon) lived in worlds that had gravitational pulls two-to-three times stronger than that of Earth’s. For the most part, a planet purely inhabited by Squats is thought to be non-existent. The guy in the story is having his mind blown by the fact of what he’s seeing because the Imperium taught him that there’s no way Squats could be alive with their own planet, much less a whole starship.
Finally, this biggest cliffhanger of all ends with “That (v)essel belongs to Squa(ts)…”  As we know, GW doesn’t like to release lore or artwork for things they aren’t making minis for.
New Rumors

- The most important question is, when? It’s probably sooner than you think, we’ve heard this coming Spring.
- They will be released similar to the Sisters of Battle with an exclusive codex and very early access army box.
- The units inside will be an Ancient (HQ), ten troopers (supposedly with padded armor and sunglasses), 5 Exo-suits, and 1 Thudd gun (Heavy Support).
These are some of the most exciting rumors we’ve heard in a while for new Squats in Warhammer 40k! With all this said, perhaps there’s still a chance for more Squats yet… don’t lose hope!
All the Newest GW Model Previews For Oct & Beyond
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