If you want to know a sure-fire way to open a can of worms, just include time travel in a movie. While Avengers: Endgame did a pretty good job of explaining its time travel rules and mechanics, as well as wrapping up character arcs and the larger Infinity Saga, there are still some loose ends, particularly those regarding Captain America. The end of the film sees Chris Evans’ Steve Rogers go back in time and stay there to reunite with Peggy Carter.
This has left many fans with some unanswered questions, like whether or not that is an alternate timeline or the main timeline or what. It’s a debate that many are still having months after the film’s release, and Avengers: Endgame’s writers Christopher Markus and Stephen McFeely love to see it. Addressing the ongoing fan debate over Captain America’s ending, the duo said:
You might think that the Avengers: Endgame scribes would be frustrated that people are still debating their ending for Captain America, but in reality they are all for it. The duo loves seeing the fans continue to discuss and theorize about Captain America’s time travel adventure and the wider implications of his choice in the film.