MCU fans could be in for a surprising treat in Avengers: Secret Wars. According to a new report by industry insider James Mack, the Marvel superhero team the Defenders will play a major part in Avengers: Secret Wars. Why the Defenders’ reported role is so unexpectedIf the Defenders reunite for a major role in Avengers: Secret Wars, it would certainly be a surprising development. For now, it remains uncertain whether the Defenders will indeed join the Avengers in Secret Wars. Meanwhile, Avengers: Secret Wars arrives in theaters on December 17, 2027, just a year after Avengers: Doomsday.