X-Men Avengers Doomsday: Are the X-Men Doomed in Marvel’s Multiverse?

X-Men Characters Join the MCU

The live stream event announcing the cast of Avengers: Doomsday lasted over five hours and featured an unexpected list of characters. Many of them come from the X-Men universe owned by Fox, now officially part of the multiverse thanks to Doctor Strange in the Multiverse of Madness.

Actors reurning or joining from the X-Men universe include:

• Hugh Jackman (Wolverine)
• James McAvoy (Professor X)
• Michael Fassbender (Magneto)
• Other familiar mutants from the Fox timeline

While fans were thrilled to see them back, their inclusion raises a major question: Why is Marvel bringing them in now—and what’s their role in the multiverse saga?

A Setup for Destruction?

The answer may not be hopeful. Inside sources and fan theories suggest that Avengers: Doomsday will show Doctor Doom destroying the X-Men’s universe.

This wouldn't be just for shock value. It fits perfectly with Marvel's long-term plan. Doom wiping out the Fox X-Men universe could:

• Show Doom’s power early in the film
• Create emotional impact for fans
• Make space for MCU-original characters to return in Secret Wars
• Shift focus to the new MCU version of the X-Men post-Secret Wars

Why It Makes Sense for Marvel

Let’s face it—Marvel can’t continue with two X-Men timelines. The Fox version had a great run, but Marvel Studios needs a clean start for the mutants in its own universe. What better way to do that than by ending the Fox era in a powerful, dramatic way?

We’ve already seen Marvel slowly introduce mutants like Kamala Khan and Namor as part of the new canon. A final farewell to the old guard would prepare fans emotionally for a full reboot—just like what Marvel did with Spider-Man in the past.

Will the X-Men Return in Secret Wars?

Here’s the most exciting part: Even if many Fox-era X-Men are killed off in Doomsday, they could still return. Secret Wars is expected to be the biggest multiverse crossover ever, with heroes from multiple realities uniting against Doom.

Imagine a last-minute rescue involving:

• Wolverine
• Jean Grey
• Cyclops
• Storm
• Fighting alongside characters like Spider-Man, Scarlet Witch, and Captain America. That kind of finale would match the scale of Endgame—and give the X-Men the ending they deserve.

Final Thoughts

Bringing back the X-Men in Avengers: Doomsday is more than just fan service. It’s a critical move that sets the tone for the rest of Marvel’s multiverse saga. But it also comes with a warning: not all of them may survive.

Marvel might be giving fans a final chance to say goodbye to the X-Men we've known for two decades. And when Secret Wars arrives, we may finally meet their replacements—the new generation of mutants in the MCU.

What do you think? Will Doom destroy the X-Men? Or will they find a way to survive and fight again? Let us know your theory.