Samuel L. Jackson’s character has been a common thread that has run right through 2008’s Iron Man to Endgame’s precursor, Captain Marvel.
While he doesn’t have “superpowers,” he can certainly be of help to the Avengers, that is if him and the rest of the dusted heroes survive by some miracle.
I don’t know about you, but I refuse to believe the man who brought the Avengers together won’t make an appearance in the upcoming final chapter of the MCU’s Phase 3.