The age of Star Wars devolves into the world we now know. Planets turn away from the Republic, from space travel, and eventually technologically less advanced worlds like ours take baby steps into a future that's already played out a thousands times before.

All of which is fine, except Force sensitivity is still a thing. And Erskine's formula? Simply enhances Steve Rogers' Force-sensitivity.

Tl;dr: Jedi!Steve, Sith!SHIELD, fallen!Bucky and Force-reborn!Mace Windu.