10 X-Men Who Should Be Introduced Into The MCU As "Villains"
2. Archangel
If the X-Men do already exist in the MCU, which incarnation of the team will we see? Will Xavier's crew be in its formative stages or will his school have a history of its own? It's almost a certainty that either Cyclops, Beast, Iceman, Angel, or Jean Grey will be a founding member, but that doesn't mean that they remained X-Men after their graduation.
Apocalypse will hopefully be kept for later X-films, but introducing his horsemen earlier would be a great way to lay the groundwork. Archangel can be introduced into the MCU, rather than Angel, to give the X-Men a credible threat and foreshadow the coming Apocalypse.
What if Angel was a proud member of the X-Men before following a path that leads to the loss of his wings and an eventual run-in with Mr. Sinister or Apocalypse. Having an established X-Men team take on an old member isn't a horrible idea. With Marvel's penchant for releasing films that jump around their timeline, this offers the opportunity to tell the necessary stories now and potentially revisit the past events in a separate movie.