Gunn Teases Brainiac Clue for Man of Tomorrow

James Gunn has teased the 2027 DCU sequel Superman: Man of Tomorrow, slated for July 9, 2027, with production likely beginning in 2026 to meet that release. He has posted a photo of the script’s title page (draft dated 9-22-25) showing a bisected brain diagram, prompting widespread fan speculation that Brainiac may be the film’s big antagonist, though Gunn has not confirmed that. David Corenswet is set to return as Superman and Nicholas Hoult as Lex Luthor, and Gunn has said the movie may be as much a Lex story as a Superman one, aiming to explore Lex’s humanity and an almost “incredibly heroic” side. Gunn has teased plot elements including an uneasy team-up in which Lex dons a warsuit to help Superman against a shared, much larger threat before potentially double-crossing him. Fans and outlets note Brainiac would be a major live-action debut and was previously considered for an unrealized Cavill-era Man of Steel sequel; further casting and production details (including who might play Brainiac) are expected as the project moves toward production.