Robert Downey Jr.'s return to the MCU as Doctor Doom may not end after his appearance in Marvel Studios' long-awaited Avengers: Secret Wars.

Avengers: Doomsday will feature Robert Downey Jr. returning as Doctor Doom, marking the start of a new phase in the MCU.

Although Benedict Cumberbatch has spoiled that Doctor Strange won't be in Avengers: Doomsday, it backs up a popular theory ...