I'm concerned that Bruce Banner might be Smart Hulk for the remainder of his MCU career based on his most recent appearances. Hulk's MCU arc is unique insofar as, unlike most fellow Avengers, he has only starred in one solo movie, The Incredible Hulk, before co-starring in subsequent Avengers movies (and Thor: Ragnarok) alongside his heroic cohorts. The most recent of these saw Bruce Banner renounce the Savage Hulk persona, using the intervening years between the Snap and the Blip to merge his consciousness with the body of the Hulk at his lab in Mexico.

Smart Hulk played an integral role in Avengers: Endgame and the titular team's success in reversing the effects of the Snap. Banner's brilliant mind helped to bring about the Time Heist while Hulk's gamma-resistant constitution facilitated the Blip to bring back all those lost in the Snap. While he was invaluable in this regard,...