Marvel Studios' Avengers: Doomsday | Official Trailer

Doctor Strange will be back for Avengers: Doomsday and the character's return sets him up to be a crucial piece to the Doctor Doom puzzle in the Marvel Cinematic Universe movie. After it became clear that Marvel would be moving on from Kang the Conqueror, even before Jonathan Majors was fired, fans asked for the MCU to bring in Doctor Doom. When that finally happened, it came with a surprise, as Iron Man actor Robert Downey Jr. was chosen to lead the MCU's next two Avengers movies as Victor von Doom.

As one would expect, the casting news led to many theories about how that could be possible. From an alternate universe Tony Stark to a Victor von Doom who just happens to look like Tony to the MCU's resurrected Iron Man turned bad and more, there have been many theories connecting Iron Man and Doctor Doom. However, the main face of Avengers: Doomsday's cast does not need to be treated as an Iron Man replacement, as Doom is much more than that. With Doctor Strange confirmed to play a role in Avengers: Doomsday's story, he can help realize Doom's potential.