Fan sneaks on Avengers Doomsday Set: from Madripoor Secrets to X-Men-Theories, 3 large leaks unveiled

A TIKTOK user who took part in @Theyneversawitcoming became viral after he claimed that the Avengers: Doomsday set, the awaited Marvel film directed by the Russo Brothers. The user has shared a video that shows the film material behind the scenes from the set based in London. While the clip has been removed from Tikkok since then, it was packed again on Instagram and widespread on X (formerly Twitter).

The film with Robert Downey Jr. in a new role as Doctor Doom began in March 2025 and is to be released on May 1, 2026.

One of the most discussed details from the video is the viewing of a Madripoor set. Madripoor, a fictional island that is known for its legal, criminal environment, appeared for the first time in the falcon and in the winter soldier. It is closely connected to Sharon Carter's Power Broker story and keeps deep connections to Marvel's mutated universe.

Fans on social media pointed out that this indicates Sharon Carter's return or even signals the possible participation of Wolverine. A user wrote: “If we get Madripoor in this film, it would be nice if this means that we can finally fix the entire history of Sharon/Power-Broker.” Another just asked: “Wolverine?”

While the clip received attention, several Marvel fans questioned his authenticity. Some suggested that it could be a stunt. A user on X wrote: “The Tikok clip, the user name, the fact that he was not immediately dismantled by Disney … this is staged in a hell.” Another joked: “Yes, that's definitely not a stunt from Disney.”

Critics pointed out that the Tikotoker did not try to hide and went open with a backpack and a phone in his hand. “He walked around with a backpack and his phone as if he was taking up, and so someone looks when he is supposed to be there?” Asked a person.

In addition to Madripoor, the fans also discovered Sentinels, a recall of X-Men: Days of Future Past. These sightings fueled rumors about a large avenger against X-Men Crossover in Avengers: Doomsday.

Since Marvel is now integrating Fox's X-Men Universum, theories are becoming stronger. Rumors indicate that Kameen from Patrick Stewarts Professor X and Ian McKellens Magneto together with Hugh Jackmans Wolverine.

While nothing was confirmed by Marvel, the leaked footage has added the ongoing speculation fuel. Until Avengers: Doomsday in 2026, the fans will continue to analyze every detail and possible leak online.

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