Following Avengers: Infinity War’s release, fans had speculated that Shuri had somehow been able to download Vision’s key information into Wakanda’s databases during her efforts to remove the Mind Stone from his forehead without killing him, so it certainly would have been interesting to see Vision’s memories downloaded back into either his repaired original body or a new body.
Ultimately though, Marvel Studios president Kevin Feige decided to scrap the body bag scene, and Avengers: Endgame even broke MCU tradition by not including any kind of mid/post-credits tag (outside of the sound of a hammer striking metal being heard, a callback to Iron Man).We’ll have to wait and see how WandaVision answers that question and more in the coming weeks, but perhaps in another universe, Kevin Feige decided to keep the body bag scene in Avengers: Endgame, leading to Vision being put back on the MCU board in a different way.