Käytännössä kaikissa Marvelin elokuvissa oli tapana nähdä lyhyt pätkä, jossa vilahti Marvelin isoherra Stan Lee. Hepun mentyä manan majoille on selvinnyt, että Avengers-ohjaajakaksikko Russon veljekset aikovat tehdä Stan Leestä dokumentin.
Asiasta kertoi India Times.
"We love Stan Lee and I think it's incredibly special that Endgame will be his final cameo. We are fascinated by the life of Stan Lee and we are actually developing a little something that has to do with his work in the history of Marvel. But we are not ready to present it or talk about it yet. It's more of a documentary."