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In 2024, Robert Downey Jr. was announced to be joining Avengers: Doomsday’s cast, but not as Tony Stark, rather as Doctor Doom. This confirmation solved some of Doomsday’s problems, but not all of them, and many still need to be addressed either in the lead-up to the movie or during the actual story itself. The Multiverse Saga as a whole has put a lot of pressure on Avengers: Doomsday, presenting many obstacles that the Russo brothers need to overcome in their upcoming Phase 6 sequel and beyond.
7) The Multiverse Hasn’t Been Used Enough Before Avengers: Doomsday

Avengers: Doomsday is expected to focus intensely on the concept of the multiverse, as it will be the beginning of the end for the Multiverse Saga. Despite being named the Multiverse Saga, however, this era of the MCU hasn’t really explored the multiverse enough. Doctor Strange in the Multiverse of Madness, The Marvels, Deadpool & Wolverine, The Fantastic Four: First Steps, Spider-Man: No Way Home, and Loki have explored the multiverse, but Marvel Studios should have pushed this much further. Doomsday may now be limited by only being able to explore a few alternate realitiesโit could have been far more.
6) Doctor Doom Hasn’t Been Given Enough Foundation (MCU Has Continued to Focus on Thanos)

The idea of Robert Downey Jr.’s upcoming appearance as Doctor Doom is hugely exciting, but there hasn’t been a lot of set-up for his rampage across the multiverse. Instead, Marvel Studios has strangely been continuing to focus on the Mad Titan, Thanos, who posed a significant threat in Avengers: Infinity War and Avengers: Endgame. Thanos has appeared many times in the animated What If…? series, and Josh Brolin has teased his return to the MCU. It seems as though Thanos is likely to return in Doomsday, but we need Doctor Doom to take center-stage since Downey is coming back.
5) Avengers: Doomsday’s Stakes Have Been Too Rushed

Doctor Doom is expected to be traveling around the multiverse to kill variants and try to stop incursions in Avengers: Doomsday, but this mission seems much too large to cram into just one movie. By now, we should have seen some glimpse towards Doom’s mission, but we’ve only seen him once in an uncredited appearance in The Fantastic Four: First Steps’ mid-credits scene, just appearing to Franklin Richards. Doomsday must be gearing up to be jam-packed with Doom’s destructive conquest, which is exciting, but the lead-up has been rushed, so we’d love a bit more set-up over the next year.
4) Too Many MCU Characters in Avengers: Doomsday Have Been Missing for Too Long

Marvel Studios announced the first 26 actors joining Robert Downey Jr. at the end of March, including members of the Avengers, New Avengers, Fantastic Four, X-Men, and more. However, it’s a shame that we haven’t seen some of these heroes literally in years. We haven’t seen Shang-Chi since 2021, or the likes of Thor, Shuri, M’Baku, and Namor since 2022. With more Marvel characters expected to join Downey Jr. and others in Doomsday, we might revisit more heroes we haven’t seen in even longer, which underlines one of the biggest criticisms of the Multiverse Saga.











