Although given that there’s a She-Hulk Disney+ series in development, it’s hard to imagine Bruce Banner not being involved with that project at least a little bit, considering that he’s Jennifer Walters’ cousin in the comics.
Since there are still no plans to deliver another solo Hulk movie, it’s hard to say if/when we’ll see him again in the MCU.
Although his arm was badly damaged when he channeled the power of all the Infinity Stones, Smart Hulk made it out of Avengers: Endgame’s climactic third act alive.