The Russo Brothers have shared some intriguing details about the upcoming Avengers: Doomsday and Avengers: Secret Wars, promising that these films will bring something unexpected to the Marvel Cinematic Universe. While they remained tight-lipped about specific plot details, they did reveal that the movies will be “radical” and will “challenge audiences.”

Speaking at the premiere of The Electric State, Joe Russo explained, “We found a way into the story that’s very exciting to us … but very radical … we think it’s going to challenge audiences.” The films are set to be shot back-to-back in London, a massive undertaking that Joe Russo joked they “may or may not survive.” He added, “It’s a lot of work again, but we’re very excited about it.”

When asked if characters from the X-Men universe, Deadpool, or Wolverine would be making appearances, the brothers skillfully avoided confirming anything. Joe Russo kept it vague,...