MCU Phase 4: 10 Biggest Mysteries (So Far)

This is one of several things teased by Shang-Chi, though - of them all - probably the least significant. Still... why is Bruce human again?

Though we never had any clarification of this, it was kind of implied that Bruce was permanently stuck in his Professor Hulk form. At no point in Endgame did he make any effort to go back to human-sized Banner. On the contrary, he seemed proud to have merged his dual consciousnesses together. He seemed happier and more confident in his new form, and he held it throughout the entirety of the film.

So what gives? Why go back to Bruce after all that?

We saw a holographic projection of a still sling-bound Banner in the Sanctum Sanctorum, where - along with Wong and Captain Marvel - he was giving Shang and Katy a rundown on the Ten Rings. The un-sexy, pragmatic logic behind this could be as simple as, "Marvel didn't want to spend the money to CG a big green Hulk." But we all know it's not that simple. Whatever it is, it almost certainly has something to do with the forthcoming She-Hulk series. We'll just have to wait and see how that all plays out.