Marvel has reserved July 23, 2027, on its release calendar for a movie that hasn’t been named yet. Sources tell Variety, though, that this won’t be an X-Men film. Marvel didn’t comment on the story.

Days after “Thunderbolts*” hit the big screen, Disney CEO Bob Iger was feeling celebratory. He publicly touted the comic book adventure as the “first and best” example of Marvel’s new movie strategy, ...