Mark Ruffalo's Bruce Banner, aka Hulk, had an eventful run throughout the Infinity Saga. Starting from beating Ultron to being brutally overthrown by The Mad Titan Thanos, Banner became the OG Avenger that could possibly lead the next roster of the Avengers in the next MCU phases.
However, for now, Banner would have to mentor first Tatiana Maslany's Jennifer Walters, the new female counterpart of Hulk, in the upcoming Disney+ series, She-Hulk: Attorney at Law.

Mark Ruffalo Still Enjoys Playing The Incredible Hulk
Now that Banner is set to show the way to the new She-Hulk in town, Jennifer Walters' actress Tatiana Maslany noticed that Mark Ruffalo is nowhere near exhausted from playing The Incredible Hulk for over a decade. In an interview with Screenrant, Maslany recalled working with the Marvel veteran:
She added:
Mark Ruffalo's MCU Future as Hulk in Phase 5 and Phase 6
Despite his fellow Avengers retiring from the mega-franchise, it seems Ruffalo is still having the time of his life playing Bruce Banner in the MCU. During an interview with Entertainment Tonight, Ruffalo got a bit candid and might have accidentally spoiled his inclusion in the newly-confirmed Avengers: Secret Wars. See Ruffalo's full quote below:
For now, fans can catch Mark Ruffalo as Bruce Banner in She-Hulk: Attorney at Law, streaming on Disney+ on August 18.
Also read: She-Hulk First Reactions Are In: "Funniest Marvel Studios Content," "Clever and Relatable"