As we get closer to seeing our favorite MCU heroes once again in Avengers: Doomsday, Marvel fans are wondering how the new film will handle continuity issues regarding old Steve Rogers, brought up in the last Avengers movie.

"One thing I've been wondering about is Old Steve Rogers," said one fan on Reddit. "I'm not asking whether he'll appear in the movie. I'm more curious about what happens to his character and how Marvel is going to address him. I just can't wrap my head around his existence."

At the end of Avengers: Endgame, Steve Rogers takes the Infinity Stones back to their respective timelines. But, instead of travelling back to the present time, he goes to the '40s to be with Peggy Carter. This means that when he catches up to the present, he is an old man. At the end of the 2019 movie, we see old man Rogers pass on his shield and mantle to Anthony Mackie's Sam Wilson as the next Captain America.

With this, fans are wondering if old man Rogers will appear, as in the Rogers-themed teaser, he is young, played once again by Chris Evans. Many others said Marvel may just ignore the whole plot point, with one adding, "They barely addressed the blip." Another added, "Poor Sam is going to spend the whole movie explaining there's more than one Steve running around the multiverse."

However, one fan suggested that old man Rogers may be addressed in the upcoming Avengers: Endgame rerelease, adding, "they said they have added new scenes to 'bridge' to Doomsday." The fan is correct, as just under two months before Doomsday hits cinemas, Marvel is showing Endgame again on the big screen, with new footage, deleted scenes, and a special ending.

Although the comic book studio hasn't given anything away so far, it is thought that the new ending will lead into Doomsday and explain why certain characters are able to return. Oh, and there's also the matter of why the movie's villain, Doctor Doom, looks exactly like the late Tony Stark, due to Robert Downey Jr playing both characters, which the Russos say will be addressed.

Avengers: Doomsday arrives on December 18. For more on Marvel Phase 6, check out our guide on how to watch the Marvel movies in order and keep up with upcoming Marvel movies and shows.