We have a new idea for you! There is a deleted scene from Avengers: Endgame, which explains a lot, including how Snape works and what happened to the stones.
Where to find the deleted scene?
The scene is available on Disney Plus. It shows an alternate version of a conversation between The Hulk (Mark Ruffalo) and the Ancient One (Tilda Swinton).
In the conversation, she reveals that she has knowledge about how Snape works on a spiritual level and how removing an Infinity Stone affects her time.
The Old One states that no one was killed during the snap. They were just “out of existence”, which is not the same as Death. She explains that Death is permanent, while Snape is not.
This explains that all the heroes who were cast out of existence could be brought back except Gomorrah (Zoe Saldana) and Black Widow (Scarlett Johansson), who had natural deaths.
This, in turn, would confirm that Thanos, played by Josh Brolin, is not actually dead. Instead, he was just excluded from existence by Tony Stark. Maybe, this could lead to the return of the Mad Titan in a future Marvel film.
We are directed by Anthony and Joe Russo, Avengers: Endgame, Iron Man without Robert Downey Jr., Bruce Banner as Mark Ruffalo, Ant-Man as Paul Rudd, Chris Evans as Captain America, John Favreau as did not do.
Happy Hogan, Karen Gillian as Nebula, Joe Saldana as Gomorrah, Don Chiddle as War Machine, Brie Larson as Captain Marvel, Chris Hemsworth as Thor, Jeremy Renner as Hawke, Denny as Okoye Gurira, Gwyneth Paltrow as Paper Potts, Benitive Cum Strange (which probably won’t be as good as we think she is), Benedict Wong as Benedict Wong, Scarley As Johansson Black Widow, Bradley as Cooper rockets and passion as Brolin Thanos.