At San Diego Comic-Con 2024, Marvel Studios unveiled exciting updates about the future of the MCU, including the surprising return of Robert Downey, Jr. as Doctor Doom. Doom will play a pivotal role in the Multiverse Saga's climax, featuring prominently in both 2026's Avengers: Doomsday and 2027's Avengers: Secret Wars. Adding to the excitement, Kelsey Grammer will reprise his role as Beast in Doomsday, following his cameo in 2023's The Marvels.
This raises intriguing questions: Could Avengers: Doomsday be a secret adaptation of the Avengers vs. X-Men storyline? There's growing speculation that this might be the case.
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The Avengers and X-Men have a long history of collaboration, teaming up in epic tales like Marvel Super Heroes Secret Wars (1984) and Secret Invasion (2008). However, Avengers vs. X-Men (2012) is unique because it pits these two teams against each other.
The tension arises during a dark period for the X-Men, following Scarlet Witch's actions in House of M (2005), which drastically reduced the mutant population. The Phoenix Force's arrival adds to the chaos, with the Avengers viewing it as a threat to Earth, while Cyclops sees it as a potential savior for mutantkind. This disagreement leads to a full-blown conflict.
The story unfolds in three acts. Initially, the X-Men are the underdogs, fighting to protect the Phoenix Force. The situation escalates when Iron Man's attempt to destroy the Phoenix splits it into five pieces, empowering Cyclops, Emma Frost, Namor, Colossus, and Magik, who become the Phoenix Five. In the second act, the Avengers are on the defensive, retreating to Wakanda, which is later flooded by Namor. Their hope lies in Hope Summers, the first mutant born post-House of M, who they believe can absorb the Phoenix Force.
The final act sees Cyclops, possessed by the Phoenix Force, becoming the Dark Phoenix and killing Charles Xavier. However, the story concludes on a hopeful note as Hope, with Scarlet Witch's help, eradicates the Phoenix Force and restores the mutant gene.
Details about Avengers: Doomsday are sparse, with the film's title and cast undergoing changes. Originally titled Avengers: The Kang Dynasty, the focus shifted from Kang to Doom after Marvel cut ties with Jonathan Majors. Currently, the MCU lacks an official Avengers team, and the X-Men presence is minimal, with only a few mutants introduced, such as Iman Vellani's Kamala Khan and Tenoch Huerta's Namor.
Here’s a quick rundown of every mutant character confirmed to exist in the MCU so far, all from Earth-616:
It's unclear if Quicksilver and Scarlet Witch will be revealed as mutants in the MCU.
Given the current state of the Avengers and X-Men in the MCU, why would Marvel attempt an Avengers vs. X-Men movie? The answer likely lies in the multiverse. We theorize that Avengers: Doomsday will be a multiverse story, pitting the MCU against the heroes of another universe, specifically the X-Men from the Fox universe. This could be the final chapter for the Fox X-Men characters.
The post-credits scene from The Marvels, where Grammer's Beast cares for Monica Rambeau, suggests Monica is trapped in the Fox X-Men universe. This sets the stage for an Incursion between the MCU and Earth-10005, leading to a battle for survival.
The conflict in Avengers: Doomsday might draw inspiration from the first chapter of the 2015 Secret Wars series, where an Incursion between the classic Marvel Universe and the Ultimate Universe forces the Avengers and Ultimates into a battle where one Earth must be destroyed to save the other. This could be the basis for the Avengers and X-Men's conflict, with both teams fighting for their respective worlds' survival.
This setup promises epic superhero matchups, such as Captain America vs. Wolverine, and could explore characters' conflicting loyalties, like Ms. Marvel's potential connection to the X-Men or Deadpool's past aspirations to join the Avengers.
Doctor Doom's role in Avengers: Doomsday is crucial. Known for his opportunism and manipulation, Doom could exploit the conflict between the Avengers and X-Men to weaken them, making the world more vulnerable to his plans. His actions in the comics, such as manipulating Scarlet Witch in House of M, show his penchant for playing heroes against each other.
Doom's involvement in the multiverse's collapse in the comics suggests he might be orchestrating the events leading to Secret Wars. In Doomsday, he could be the unseen hand driving the conflict, much like Zemo in Captain America: Civil War.
Originally planned as Avengers: The Kang Dynasty, Avengers: Doomsday is expected to lead directly into Avengers: Secret Wars. Drawing from Secret Wars #1, the film might end with the multiverse's destruction, setting the stage for Battleworld, a patchwork reality ruled by Doom.
If Doomsday follows this path, the Avengers and X-Men's failure to unite against the multiverse's collapse could lead to a dark status quo, with Doom becoming the God Emperor of Battleworld. This would set the stage for Secret Wars, where a diverse lineup of Marvel heroes from various universes would unite to restore the multiverse and overthrow Doom.
For more on the MCU's future, explore why Secret Wars finally has the villain it needs in Downey's Doom, and stay updated on every Marvel movie and series in development.
Note: this article was originally published on 09/02/2024 and updated on 03/26/2025 with the latest news about Avengers: Doomsday.
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