Avengers: Endgame secretly left one last Steve Rogers mystery, and Marvel is finally about to face it head-on given Steve’s confirmed return in Avengers: Doomsday. Sold as the triumphant end to the MCU’s first three phases, Endgame saw Captain America finally get his happily ever after. Marvel’s man out of time used time travel to […] The post Steve Rogers’ Return Means the MCU Can Finally Solve Avengers: Endgame’s Last Mystery appeared first on ComicBook.com .