Banner and Hulk’s meeting in the Soul World could have provided some closure to the sudden emergence of Smart Hulk.
The images show Mark Ruffalo’s Bruce Banner entering the simple beauty that is the Soul World.
The other arguably more interesting idea that was suggested was to have Banner come face-to-face with the Hulk, with the two separate entities finally coming to a mutual understanding.
It was recently revealed during a watch part of Avengers: Endgame that several ideas were floated for who Smart Hulk would meet in the Soul World following his heroic infinity gauntlet snap.