The introduction of Doctor Doom as a central figure in 'Avengers: Doomsday' could significantly impact the MCU's narrative, especially as it approaches the conclusion of the Multiverse Saga. Fans are eager to see how the character's complex motivations and potential betrayal will play out on screen. The film is expected to bring together iconic teams like the Avengers, New Avengers, Fantastic Four, and X-Men, setting the stage for a high-stakes battle. However, the absence of key characters like Doctor Strange and Scarlet Witch in the initial lineup raises questions about their roles in the upcoming films.