The Hulk's arm seems totally fine in the She-Hulk series, which raises the question of how and when it managed to heal. The latest She-Hulk trailer reveals that, despite not being a show about Bruce Banner, the Disney+ MCU series will offer the best and probably longest look at the Hulk character since Avengers: Endgame. As the only founding member of the Avengers to not have received another solo project since the 2012 team-up film, the Hulk remains a secondary player in the MCU and continues to be used to serve other heroes' stories, as he did in Thor: Ragnarok and will do next in She-Hulk.
The MCU's Hulk problems began in Avengers: Age of Ultron, but the issue of the Hulk no longer being an important part of the action in the franchise traces back to Avengers: Infinity War. Endgame expanded on that idea by introducing Smart Hulk (a.k.a. Professor Hulk), which is a balanced combination of the Hulk and Bruce Banner who did not share the same enthusiasm for battles and rage as his previous versions. The Hulk's ability to take on a fight suffered an even bigger blow after he used the Iron Man Gauntlet to snap his fingers and bring everyone back from the Blip, severely injuring his arm in the process. The Hulk was then barely seen in Endgame's final fight against Thanos, and his arm still looked in bad shape at the end of the movie.
Related: Why She-Hulk's CGI Looks So Bad
In the She-Hulk trailer, however, Smart Hulk is seen with his arm looking totally fine. More than looking healed, the Hulk's arm is not even scarred in the She-Hulk trailer, as if he never had the injury in the first place. One simple explanation for such an odd change is that She-Hulk could be set before the events of Endgame. That would not only
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