A slick Ultramarines vs Necrons leak had 40k fans convinced GW teased the lead into 11th edition, but here’s everything revealed by Games Workshop so far!
It’s happening again. The Ultramarines, those poster boys of the Imperium, are confirmed to gearing up for another spotlight moment, and this time, the Necrons are crashing their party. A leak from The Grand Alliance stirred up the 40k scene, teasing something called the “500 Worlds Battalion: Necrons.”
Now, before you reach for your purity seals, we know it’s all true now. Even better, the source, known as “Bool,” has a track record of calling it right with AOS releases.
Here’s what has been confirmed about the new 40k 500 Worlds campaign, Captain Titus’s crusade, and the latest Necron face-off.
The Ultramarines Get More Stuff?
Updated on November 9th, 2025, by Rob Baer with the latest
If you play anything other than blue, you’re probably sighing. Yes, it looks like more Ultramarine kits are on the way. According to Bool, there were “numerous long-delayed Ultramarine-exclusive kits” that would finally see daylight.
Rumors said to look for new Tyrannic War Veterans, reboxed heroes, or maybe even a custom Dreadnought variant. Considering the current edition focuses heavily on the Tyranid invasion of Segmentum Pacificus, revisiting the Tyrannic War theme would fit like a power fist to the jaw.
But no one had money on the return of Captain Titus!
What’s Up with “500 Worlds Battalion: Necrons”?
Here’s where things go from “neat rumor” to “it’s happening”
We know the image doing the rounds featuring the label Warhammer 40,000 500 Worlds Battalion: Necrons is real!
The 500 Worlds: Titus Campaign Set
Games Workshop’s “500 Worlds: Titus” box turns this story into a full campaign. Inside are four books loaded with lore, campaigns, boarding missions, and detachment rules for both Marines and Necrons.
Captain Titus Returns
Captain Titus is back and trading his lieutenant bars for something bigger: Master of the Watch. His new job? Guarding Macragge and the 500 Worlds while Guilliman’s off swinging swords across the stars. He’s Ultramar’s last hope and its most reliable brawler.
His new squad, the Wardens of Ultramar, brings together Ultramar’s heavy hitters and some new blood. Ancient Gadriel hoists the Second Company banner like it’s personal, and Veteran Sergeant Metaurus is the grizzled veteran who’s seen it all.
Necron Trouble in the 500 Worlds
Of course, peace never sticks. Titus’ return gets interrupted by a Necron warlord named Nekrosor Ammentar, who’s leading corrupted Destroyers and scaring even other Necrons. His target? Ultramar itself.
The Nightbringer Rises
Ammentar’s obsession with the Nightbringer has twisted his army beyond repair. Now there’s a new 500 Worlds Necron Battalion box to match his doomsday energy and the new C’tan Nightbringer model that looks ready to vaporize anything blue.
500 Worlds, A Second Clash of Dynasties and Discipline
A Necron incursion into Ultramar’s territory is a big narrative shake-up. We’ve had the Tyranids, Chaos, and Space Marines chew their share of screen time. Bringing the Necrons into direct conflict with the Imperium’s shining sons gives Games Workshop plenty of room to flex, much like they did in 9th Edition.
Now it looks like we’re getting new rules for planetary defense, Ultramar-specific detachments, and Necron dynasties with fresh lore expansions.
Why 500 Worlds Could Point to 11th Edition
Think about it: we’re nearing the end of the 10th edition narrative arc. The Tyranids got their spotlight, Chaos has been simmering, and the xenos factions are overdue for a big story push.
The 500 Worlds Campaign stands to serve as the transition event leading straight into 11th edition, just like Arks of Omen wrapped up 9th.
Rumors also point to Huron Blackheart, Trazyn the Infinite being part of the 500 worlds series or lead up to 11th edition.
It’s possible that this could be a multi-book series like the Arks of Omen that returned Primarch Lion El Johnson to Warhammer 40k.
Final Thoughts on the New 40k 500 Worlds, Necrons, and Titus
Warhammer 40k’s storytelling machine is revving up again, and we’re here for it.
The idea of Ultramarines defending their 500 Worlds from a Necron resurgence feels right: classic, high-stakes, and ripe for model releases. And it means fresh kits, new campaign rules, and maybe a glimpse into what 11th edition has in store, we’re all for it.
The stars, and maybe the C’tan, are aligning and might have something even bigger to show us in the new year.
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- New Warhammer 40k Roadmap & Release Schedule
- GW Reveals Five New 40k Xenos Heroes to Crash the Party
- 40k Captain Titus Squad, 500 Worlds Campaign Revealed
- RUMORS: New 40k Space Marines 2.0 Codex, Models & Vehicles
