Marvel's upcoming film, Avengers: Doomsday, appears to be exploring the theme of fatherhood, echoing the emotional resonance of Avengers: Endgame. The film brings back key figures like Robert Downey Jr. and the Russo Brothers, potentially aiming to recapture the magic of past successes. This theme was also present in The Fantastic Four: The First Steps, which depicted superheroes balancing parental duties with world-saving responsibilities.