Oscar Isaac Exits Star Wars Event; MCU Fans Speculate Moon Knight in Avengers: Doomsday

Rumors are swirling that Oscar Isaac might be reprising his role as Moon Knight in the upcoming Avengers: Doomsday. This speculation gained traction after Star Wars Celebration announced that Isaac would not be attending the event in Japan due to changes in his production schedule. Initially, fans were excited about Isaac's possible return to the Star Wars universe as Poe Dameron, especially following Daisy Ridley's announcement of her involvement in a new Star Wars film at the 2023 Celebration. However, the shift in Isaac's schedule has led many to believe he might be gearing up to join the Avengers.

Social media erupted with speculation after the announcement, with fans quickly connecting the dots between Isaac's schedule and the ongoing production of Avengers: Doomsday in London. Tweets such as those from James Young, G the Gamer, and Taco John fueled the fire, suggesting Isaac's involvement in the film.

While the theory remains unconfirmed, Marvel Studios producer Kevin Feige hinted at more surprises during a video call at CinemaCon, stating that the livestream did not reveal the entire cast of Doomsday. This leaves room for speculation about Isaac's potential role. Isaac previously starred in the six-episode series Moon Knight in 2022, but no follow-up has been announced yet. Avengers: Doomsday is slated for release on May 1, 2026, promising a lineup of returning heroes and new faces.

In other MCU news, fans are buzzing about Robert Downey Jr.'s recent Doctor Doom-themed birthday invitation, adding another layer of intrigue to the Marvel universe.

The cast reveal for Avengers: Doomsday last month was a significant event, particularly for fans of the X-Men franchise. Notable actors such as Kelsey Grammer (Beast), Patrick Stewart (Charles Xavier/Professor X), Ian McKellen (Magneto), Alan Cumming (Nightcrawler), Rebecca Romijn (Mystique), and James Marsden (Cyclops) are confirmed to appear, signaling a major crossover. Grammer and Stewart have already made their MCU debuts, while the others are set to join the universe for the first time. This has led to speculation that Avengers: Doomsday might be setting the stage for an epic Avengers vs. X-Men showdown.