The first batch of Avengers: Doomsday teaser trailers are being released ahead of Avatar: Fire and Ash, which means many fans are getting their first glimpse of the MCU footage via leaks online.
The first trailer focused on Chris Evans' return as Steve Rogers, the second was all about Chris Hemsworth's Thor, and the latest puts focus on the X-Men.
It was previously announced that Avengers: Doomsday would feature a handful of stars from Fox's X-Men franchise. Kelsey Grammer (Beast), Patrick Stewart (Professor X), Ian McKellen (Magneto), Alan Cumming (Nightcrawler), Rebecca Romijn (Mystique), and James Marsden (Cyclops) were all included in the Doomsday chair announcement video.

The latest leaked trailer features Stewart, McKellen, and Marsden as well as the Mutant-hunting robots known as Sentinels.
The trailer begins with the iconic X-Men Mansion, which looks partially destroyed. We see the bottom of Charles Xavier’s wheelchair before his full body is revealed. The scene continues with a chessboard featuring a floating king, controlled by Xavier.
Next, Erik/Magneto is revealed, and he holds hands with Charles across the board. They smile at each other, and then the trailer cuts to Cyclops removing his visor and screaming as everything around him burns. Then we see what appears to be the foot of a Sentinel.
It's also being reported that the trailer includes the following quote from Magneto:
Magneto in the X-Men focused #AvengersDoomsday teaser:
— X-Men Updates (@XMenUpdate) December 28, 2025
“Death comes for us all, that's all i know for sure. The question isn't are you prepared to die, the question is who would you be when you close your eyes?”
Source: @demetherself pic.twitter.com/b4bybTrPnJ
Fans react to the latest Doomsday trailer
Fans are excited to see the X-Men back in action, and are especially thrilled about the inclusion of Cyclops. People were unhappy with how the character was treated in the earlier X-Men films, especially his unceremonious death in X-Men: The Last Stand. While there's a lot of enthusiasm over Stewart and McKellen, Marsden is definitely the crowd-favorite of the new trailer.
Meanwhile, many fans are frustrated over Disney's release method. You can check out some of the reactions below:
See how the X-Men trailer comes out and everyone suddenly becomes excited for Avengers Doomsday? The Mutants just do it better. pic.twitter.com/dJNwwe75Pf
— The Third King ? (@thirdking0208) December 28, 2025
They're not wrong.
The fact that 2 seconds of Cyclops in Avengers: Doomsday already did him more justice than any of the Fox X-Men films https://t.co/eIQ0TTpU0D
— Raykx (@RayyanKx) December 28, 2025
It's finally his time to shine.
Regardless of anything happening in Doomsday, the second I hear that X-Men theme in a theater again I'm ascending to the highest plane of existence
— Jack (-_•) (@captaincupkicks) December 28, 2025
We're here for them.
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byu/Fabiohasaquestion from discussion
inLeaksAndRumors
Cylcops redemption is all we need.
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byu/Fabiohasaquestion from discussion
inLeaksAndRumors
The kind of fan service we want.
Me trying to find the X-Men Doomsday trailer pic.twitter.com/u5Cx963QaZ
— Funtimenoscoper (@funtimenoscoper) December 28, 2025
This release plan is very obnoxious, Disney...
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byu/ExtensionZebra9419 from discussion
inMCUTheories
...And it's only encouraging more AI fakes.
btw we’re getting this Cyclops in X-Men for Avengers: Doomsday pic.twitter.com/1kHmETyv7O
— Kay (@legendaarykay) December 28, 2025
LFG!!!
Between X-Men ‘97 and Avengers: Doomsday, Cyclops’ PR team is working overtime to show people how cool he’s supposed to be
— Jack (-_•) (@captaincupkicks) December 28, 2025
I hope the redemption tour never ends, Scott Summers has always been HIM
2026 is Scott's year.
DOOMSDAY trailer compelled me to revisit the 2000 X-MEN and I maintain this is good shit. The script is *sharp* - introduces the world, compelling versions of Xavier and Magneto, the emotional core of Logan and Marie, and then gets the hell out in 100 minutes.
— ViewerAnon (@ViewerAnon) December 29, 2025
A good excuse to rewatch your favs.
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byu/ExtensionZebra9419 from discussion
inMCUTheories
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