Big 40k Chaos rumors say a primarch Perturabo, an Iron Warriors codex, and even a Defiler are on the way, along with more Chaos Space Marines for 11th edition.
It’s looking like the Year of Chaos might live up to its name. Between whispers of new kits, refreshed models, and some suspicious product page disappearances, Chaos Space Marines could be about to get one of their biggest updates in years.
Grab your bolters, Huron Blackheart, Legionaries, Red Corsairs, and Iron Warriors may be set to rise again, and things look to be getting interesting.
Chaos Space Marine Rumors: A Bigger Plan for the Model Range
Updated November 19th, 2025, by Rob Baer with the latest rumors.
When you connect the dots, a missing core kit, talk of upgrade sprues, narrative hints, and cross-marketing with fiction, these new Chaos Space Marines rumors may be on to something.
Could this be part of a rumored “Year of Chaos” campaign, where multiple subfactions like Red Corsairs and Iron Warriors share the spotlight through incremental releases rather than one giant wave?
New Chaos Rumors Are Spiraling, and It Is Fantastic
The latest rumors have Red Corsairs lining up a “Lords of the Maelstrom” box, probably starring Huron Blackheart and his shiny new command squad. Think Titus, but angrier and with more flaming skulls.
They might also score their own elite hunter unit since every faction seems to be getting one of those flex squads. Keep reading for the rest of the overall new Corsair rumors.
Khorne: Red Plastic Apocalypse
A World Eaters and Daemons combo box is supposedly on the way, stuffed with juggernauts, bloodletters, executioners, and enough chain weapons to make Angron proud. This lines up with talk about a Khorne Kill Team picking a fight with the Grey Knights, complete with new models on both sides. If true, this box is going to be metal in every sense.
Alpha Legion: Sneaky Boys Get Some Love
Rumor has it that Solomon Akurra is getting a brand-new sculpt, hinting that the Alpha Legion might be the next warband to get spotlight time. If Night Lords got their moment, it is only fair that the galaxy’s biggest gaslighters get theirs.
Iron Warriors: Something Big and Spikey
Converted Defiler by Rob Baer
The Iron Warriors are whispered to be receiving a major upgrade kit, but the real eye opener is the rumor that the “big iron reveal” is not Perturabo after all. Instead, it might be a redesigned Defiler stomping back onto the table.
While an upgrade kit and a defiler are nothing compared to Perturabo, it is something.
Iron Warriors Rumors Confirmed (partially) at WCW
Let’s start with the hot rumors already partially confirmed at the WCW previews: a new siege assault plastic box set is on the way.
According to forum regulars like Bool, the Iron Warriors could be breaking free from the Chaos Space Marines codex to claim their own identity with a supplement.
Think new upgrade kits, custom units, and maybe even reimagined Obliterators returning to their roots. IW players, it might finally be your turn to feel the plastic love.
Perturabo’s “Return:” Reality or Re-Sculpt?
Now, onto the big question: is Perturabo actually returning to 40k, or is this all smoke from the forge? The rumor mill says he’s “emerging from the Eye of Terror,” but not everyone’s convinced it means a full-blown narrative comeback.
However, the latest rumors suggest this won’t happen. So, we wouldn’t put too much stock into him returning. But, there is a small hope, so don’t totally let your dreams be dreams yet.
Some people suspect this could tie into the “Ascended” Primarchs line, the reimagined models for The Horus Heresy, not Warhammer 40k.
Maybe someone saw the Primarch mini, but doesn’t really understand the difference between 40k and HH models. So it is possible they just leaked that he’s coming for 40k, when it’s just HH…
If that’s the case, what some see as a resurrection might just be a glorious new sculpt of Perturabo in his Heresy-era armor. For those who’ve seen the level of detail on recent Horus Heresy releases, that’s hardly a bad thing.
Still, with Perturabo’s name popping up in the Vashtorr storyline and Iron Warriors featuring heavily in Chaos lore, the timing feels suspiciously perfect.
Fake or Real? Berzerker Surgeon Box “Leak”
So a new “leak” has been spotted using the new Rumor Engine bits. First off, the image itself looks sus. The art looks like someone Frankensteined together bits from the Eightbound box, flipped the background, and called it a day.
Some sharp-eyed hobbyists even spotted that Rumor Engine Chaos mech-arm hanging off his back.
Then there’s the name. “Berzerker Surgeon”? Come on. Loreheads will tell you the term you’re looking for is Butcher-Surgeon; that’s the actual World Eaters apothecary title. If Games Workshop really was dropping a new character kit, you’d better believe they’d stick to their own naming conventions.
And let’s not forget the proportions. The render looks pretty janky, tiny backpack bits, weird perspective, off-brand logos. It’s giving AI mashup vibes more than official reveal ones.
Auspex Tactics breaks it down way more in his CSI-style video here.
Chaos Marines Rumor Engine’s Getting Juicy
So here’s where things start getting spicy. That latest rumor engine image? Yeah, it’s basically screaming Chaos. Fans are connecting the dots between it and some fresh Red Corsair units. Then there’s the wild card, the “Butcher Surgeon” that’s been floating around the rumor mill for months.
It’s got that grim, bio-twisted vibe that fits right in with Fabius Bile’s worst science project. Whether it’s a Chaos Apothecary, a Warsmith, or something nastier, it sure feels like the Dark Gods are cooking up something big.
New Huron Blackheart Model?
Rumors say Huron Blackheart is getting a brand-new model. The infamous Tyrant of Badab has been stuck with his Finecast relic for far too long, and all signs point to him finally getting a modern plastic refresh.
What makes this more than idle chatter? The supposed timing lines up with the upcoming narrative arc, one that’s said to lean into pirate themes and Chaos raids across the stars. Huron leading the charge for a Red Corsairs-centered story would make perfect sense.
GW’s even reprinting his novel, which usually happens when a model drop is around the corner.
Red Corsairs Getting Rumored Reinforcements
The chatter doesn’t stop with Huron. The Red Corsairs themselves may be set to receive new units, possibly one to three kits, to expand the faction’s raiding flavor.
Nothing points to a full-blown range overhaul, but a small expansion with themed troops or specialists would fit GW’s pattern. Think along the lines of a character release supported by a couple of new plastic kits and a narrative box to tie it all together.
If the next Warhammer reveal really is Chaos-focused, it wouldn’t be shocking to see Red Corsairs get their moment in the spotlight after years of lurking in the background. Maybe even fighting against some Aeldari pirates.
Chaos Bikes and the Next Edition
Another long-standing Chaos Space Marines rumor making a comeback is that Chaos Bikes are getting redesigned, though reportedly not until the next edition of Warhammer 40k. With 11th Edition shaping up for 2026, that timeline lines up with GW’s usual approach: let the starter set breathe, then roll out fresh kits to maintain buzz.
New Chaos Bikes would also complete a long-overdue update cycle, bringing them up to the same visual standard as newer Chaos kits like the Chosen and Possessed.
Dark Mechanicum: It’s Finally Happening?
LI Dark Mechanicum
This is the big one. A new faction. Not a one-off, not a detachment, a full-blown new army, Dark Mechanicum. These heretek-cyber-ghouls have been teased for years, especially with Vashtorr creeping into the lore and the Legions Imperialis release teasing models.
If the rumors hold, this release could be on the scale of the Leagues of Votann, meaning you’re looking at a solid launch box, multiple units, and enough lore to fill a codex. Start clearing shelf space and maybe your bank account.
Final Thoughts: New 40k Chaos Marine Rumors
Between a vanishing Legionaries kit, fresh Huron hype, and Iron Warriors whispers, it’s hard not to feel like these Chaos Marines rumors are on to something big. Whether it’s a new plastic wave, campaign tie-ins, or a full faction spotlight, the writing’s on the wall, and it’s painted in blood and brass.
If you’ve been thinking about starting a Chaos Space Marines army or expanding an existing one, it might be time to wait just a bit longer. The Long War may finally be getting some long-overdue reinforcements.
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