Marvel came to San Diego Comic-Con 2026 at a major turning point in the company’s history. Jonathan Majors got fired, and Avengers: The Kang Dynasty became Avengers: Doomsday. That’s the conception that Marvel came to San Diego to combat. The upcoming re-release of Avengers: Endgame as Avengers: Endgame Encore will include an exclusive look at Avengers: Doomsday. Marvel unveiled this new poster for Avengers: Doomsday, revealing Robert Downey Jr.’s full costume as Doctor Doom.