"Something is coming, something we might not be able to deter."MCU fans lucky enough to attend Disney's CinemaCon 2026 presentation were rewarded, as Kevin Feige and friends debuted a brand new trailer for Avengers: Doomsday. Most notably, this trailer is the first to feature Robert Downey, Jr.'s Doctor Doom, along with a host of X-Men, Avengers, and Fantastic Four …