Robert Downey Jr. returning to the MCU as Dr. Doom

In a shocking casting announcement, Robert Downey Jr. took to the stage at the Hall H SDCC Marvel panel dressed in a green cloak, and revealed that he will be playing Victor von Doom in a new Avengers movie titled Avengers: Doomsday which will be the fifth Avengers movie, and replaces the previously-announced The Kang Dynasty. The film will be released in 2026 and will be directed by the Russo Brothers, who also helmed Captain America: The Winter Soldier, Captain America: Civil War, Avengers: Infinity War, and Avengers: Endgame.