Secret Wars

After Secret Wars Comes the Mutant Saga: Four X-Men Villains Marvel Is Ready to Unleash

The MCU has a new chapter on the horizon, and it belongs to the mutants. Marvel Studios boss Kevin Feige has confirmed that the Mutant Saga follows Avengers: Secret Wars,…

October 21, 2026
3 min read

The MCU has a new chapter on the horizon, and it belongs to the mutants. Marvel Studios boss Kevin Feige has confirmed that the Mutant Saga follows Avengers: Secret Wars, which means a whole new generation of villains could arrive.

What’s Confirmed for Secret Wars?

According to The Direct, Feige told ScreenRant that the studio is planning its mutant saga in a very grand way. The article adds that Feige promised “sagas upon sagas” of mutant stories at D23, joking that there could be 100 more X-Men films. The X-Men rights returned to Marvel when Disney acquired Fox in 2019, which is why the characters are only now arriving.

DetailWhat’s Reported
Next sagaThe Mutant Saga, after Secret Wars
First filmX-Men reboot, May 5, 2028
DirectorJake Schreier
Confirmed villainMister Sinister (Adam Driver)
Jean GreySadie Sink
CyclopsKit Connor
Professor XChristopher Abbott
Emma FrostSamara Weaving
RogueInde Navarrette
StormMaya Boyd

The First Villain: Mister Sinister

Adam Driver revealed his role at D23, playfully starting to say Magneto before correcting himself to the name Nathaniel Milbury. In the comics, that’s the alias of Nathaniel Essex, who runs the orphanage where young Scott Summers grew up, secretly experimenting on him. Sinister is the only confirmed X-Men villain so far.

Four More Who Could Follow

The Direct suggests four villains who could join him. None are confirmed.

Apocalypse. In the comics, he is the ancient being who transformed Essex into Mister Sinister. Believed to be the first mutant, he lives by a survival-of-the-fittest philosophy and recruits powerful mutants as his Horsemen. The article notes that Asa Germann was cast as Warren Worthington III, also known as Angel, whose comic story is tied to that arc. That could be a sign of Apocalypse’s shadow.

Secret Wars

Magneto. With Professor X already cast, the article argues Erik Lehnsherr must exist somewhere in this universe. His mutant-first philosophy could set up a clash between factions, this time with the Avengers caught in the crossfire. He hasn’t been officially cast.

The Brotherhood of Mutants. The extremist group that follows Magneto has included Mystique, Pyro, Sabretooth and Quicksilver over the years. If Magneto appears, the article expects the Brotherhood to follow.

The Sentinels. Created by Bolivar Trask to hunt mutants, they are a core part of X-Men stories, from Days of Future Past to the Genosha storyline seen in X-Men ‘97. The article notes they’re already set to appear in Avengers: Doomsday.

Why It Matters?

For years, the MCU’s biggest villains came from the Avengers’ corner of the comics. This time, a mutant could be the greatest threat to the entire universe. That raises the stakes for the X-Men and gives the franchise a chance to reset after the Multiverse Saga.

For more Marvel coverage, check out our latest MCU updates and our trending entertainment stories.

Conclusion

A confirmed saga, a confirmed villain and a stacked cast give fans plenty to look forward to. The question is how quickly Marvel will reveal the rest. With 2028 on the horizon, keep an eye on casting news, especially for Magneto.

FAQs

Q1. When does Marvel’s X-Men reboot release?

It is set for May 5, 2028. Adam Driver plays Mister Sinister, the only confirmed villain so far.

Q2. What is the Mutant Saga?

It’s the MCU’s next big storyline after Avengers: Secret Wars. Kevin Feige confirmed it will focus on mutants.

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