Mr. Sinister is reportedly going to be the main antagonist in the MCU ‘X-MEN’ reboot

Following the aftermath of Avengers: Endgame, Marvel Studios is undergoing significant changes, including project cancellations and overhauls, such as Daredevil: Born Again and Captain America: Brave New World. Despite Jonathan Majors reportedly being removed from the role, rumors suggest Kang will still be the villain in Avengers 5 and Avengers: Secret Wars, with Marvel Studios considering adding another antagonist. There's speculation about Doctor Doom appearing in future movies, while Mister Sinister is rumored to be the big bad for the rebooted X-Men franchise, potentially introduced in X-Men '97. Marvel's Ghost Rider plans exclude Agents of S.H.I.E.L.D.'s Robbie Reyes, with Mister Sinister being described as a geneticist obsessed with achieving evolutionary perfection through DNA manipulation, particularly interested in the Summers bloodline. Previous plans for Mister Sinister in the X-Men franchise were mentioned by producer Simon Kinberg, indicating the character's potential inclusion in the MCU.

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