Rebecca Romijn is sharing an update on her return as Mystique in the highly-anticipated Avengers: Doomsday. At The Hollywood Reporter's San Diego Comic-Con suite, the Star Trek: Strange New Worlds star admitted that she wasn't sure if she's finished filming for the forthcoming Marvel film because the script isn't fully complete.

" [I'm] not quite sure [if Mystique's scenes have all been filmed]. They haven't finished writing it." Romijn told The Hollywood Reporter. "They keep everything close to the vest themselves in an effort to keep everything under wraps."

Doomsday is officially in production, it turns out the script isn’t quite locked in. This latest update comes straight from Rebecca Romijn , who’s making her long-awaited return to the Marvel universe as Mystique in the highly anticipated 2026 film,