(Image Source: Marvel Studios)
While Chris Evans' return as "Captain America" Steve Rogers in the upcoming "Avengers 5" is all but confirmed, how Rogers will make his comeback and precisely which timeline he currently inhabits remain major points of audience speculation. Regarding the latter, recent rumors have consistently suggested that the timeline where Steve reunited with Peggy Carter and settled down is, in fact, Earth-828.
(Image Source: Marvel Studios)
Earth-828 is reportedly the timeline where the upcoming "The Fantastic Four" film is set. Logically, this timeline should have no direct connection to Steve. However, some speculate that Steve and Peggy's reunion could have triggered a chain reaction, ultimately leading to the birth of the Fantastic Four. Further reports suggest that Evans had initially filmed a post-credits scene for "The Fantastic Four" that was ultimately scrapped. This scene reportedly featured him alongside a child actor at a 1960s-style baseball field. These various reports strongly imply that Steve's story is inextricably linked to the universe of "The Fantastic Four."
via： ComicBookMovie