The Marvel Cinematic Universe is heading toward its biggest event yet with Avengers: Doomsday, set to release in December 2026. With Robert Downey Jr. returning not as Iron Man but as the iconic villain Doctor Doom, fans have been busy building theories about what the movie will bring. One detailed theory now connects the origin of Earth-616, Doctor Doom’s master plan, and a surprising twist involving Latveria.
How Earth-616 Was Created in the MCU
The theory suggests that Earth-616, the main reality where most MCU movies take place, was not a natural creation. According to this idea, He Who Remains—the Kang variant seen in the Loki Season 1 finale—actually created the entire Earth-616 timeline. Everything fans have watched in the Infinity Saga and the Multiverse Saga was part of a plan set by He Who Remains.
He Who Remains won a war between different Kang variants and built the “Sacred Timeline” to prevent chaos. This means that even Loki becoming the God of Stories in Loki Season 2 was part of this designed path. The theory goes further to say that He Who Remains was trying to erase Victor Von Doom from existence entirely.
However, Marvel Studios had to change its plans after Jonathan Majors was convicted and let go from the role of Kang. The studio then shifted focus to Doctor Doom as the new big villain for the next phase of the MCU.
Doctor Doom’s Plan for the Multiverse
The theory explains that Doom’s main goal is to take control of the multiverse. In the post-credit scene of The Fantastic Four: First Steps, audiences saw a cloaked Victor Von Doom kneeling in front of a young Franklin Richards. The boy, who is about four or five years old, is seen healing Doom’s face.
This moment is key to the theory. Franklin Richards is believed to be an Omega-level mutant with the power to change reality itself. The theory suggests that Doom will use Franklin’s powers to build Battleworld, the patchwork planet made from pieces of different universes. This would set up the events for the next movie, Avengers: Secret Wars.
Franklin will be Doom’s trump card.
Doom’s plan involves hunting down “anchor beings”—characters whose existence keeps their universe stable. The theory says Doom will target these anchors, get rid of Loki, and seek revenge against Steve Rogers for causing an incursion. Rogers’ decision to stay in the past at the end of Avengers: Endgame might have damaged Earth-828.
The Latverian Witch Twist
One of the most talked-about elements of Avengers: Doomsday is the appearance of Latverian Witches. At San Diego Comic-Con 2026, Marvel displayed costumes labeled “Latverian Witch,” sparking huge speculation among fans.
These masked figures are believed to work under Robert Downey Jr.’s Doctor Doom. Fans have connected this to the return of Wanda Maximoff, also known as the Scarlet Witch. One popular theory suggests that Wanda will return not as a hero but as a variant recruited by Doom.
Another idea points to Sylvie, the Loki variant played by Sophia Di Martino. Some believe Doom’s magic could be strong enough to control Sylvie and force her to work against Loki. The Latverian Witch costumes have different colors, leading to theories that there might be multiple witches working for Doom.
The Two Dooms Theory
Another surprising part of this theory involves the possibility of multiple Doctor Dooms in the movie. Some rumors suggest that the Doom played by Robert Downey Jr. might not be the only version of the character.
Fans have pointed to details in the Avengers: Doomsday trailer that might hint at two different Dooms. There is also speculation that Cillian Murphy could appear as another version of Doctor Doom. While Murphy is not on the official cast list, many fans see him as a perfect choice for the role.
Another idea involves Doombots—robotic copies of Doom from the comics. These robots could explain why Doom appears in different ways throughout the movie. Whether through variants or robots, the theory suggests that Avengers: Doomsday will feature more than one Doctor Doom.
Tony Stark and Doctor Doom Connection
A major part of the theory explains why Doctor Doom looks like Tony Stark. The most widespread idea is that Tony Stark and Victor Von Doom are the same person in different universes.
On Earth-616, Howard and Martha Stark adopted a baby from Latveria after the country was destroyed by war. That baby grew up to become Tony Stark. In other universes, the same child was not adopted by the Starks and instead became Victor Von Doom. This would mean that Tony Stark and Doctor Doom are genetically the same person.
Some fans also believe that Doom could use dreamwalking—the same magic Doctor Strange used in Multiverse of Madness—to take over Tony Stark’s dead body. This would explain why Doom wears a mask and why he needs to kidnap Franklin Richards.
Kevin Feige, president of Marvel Studios, has been asked about the theory that Tony Stark is Earth-616’s anchor being. If Tony was the anchor for Earth-616, his death in Endgame could have started the chain of events leading to Avengers: Doomsday.
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What This Means for the MCU
The theory paints a picture of Avengers: Doomsday as a movie where Doctor Doom tries to take control of a collapsing multiverse. Doom is set to be even more powerful than Thanos, with strength built into his own body and mind rather than relying on Infinity Stones.
Doom’s plan involves using Franklin Richards’ reality-warping powers, controlling Latverian Witches, and possibly using multiple versions of himself. The movie will likely adapt the “Time Runs Out” storyline from the comics, where Doctor Doom tries to save the multiverse in his own way.
With the movie just months away, fans continue to piece together clues from trailers, Comic-Con displays, and post-credit scenes. Whether these theories turn out to be correct, one thing is clear: Avengers: Doomsday is shaping up to be one of the most talked-about movies in Marvel history.
Also Read: Avengers: Endgame Encore Rerelease Sets Up Time Travel Consequences for Doctor Doom’s Arrival
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