Avengers: Endgame - 9 Possibilities For The Secret New Post-Credits Scene
3. It's Something Solely Limited To Spider-Man
The placement close to Spider-Man's release is definitely the most intriguing factor here and given Marvel's marketing intelligence, you could assume that all we're going to get at the end of Endgame's re-release will be something linking directly to Far From Home.
After all, it stands to reason that Marvel will want as many eyes on Far From Home as possible, because it makes them more money and makes it more likely that Sony will extend the rights-sharing deal for the character beyond his Phase 4 duties. And since Sony's marketing campaign for the movie hasn't exactly been great, bringing out a big gun like Endgame with new footage would be a very smart move.
Quite what that new footage would be remains to be seen, but it could be something that bridges the gap between Endgame and Far From Home. It would have to be exciting enough to whip up even more hype for the movie too, so if this IS the way they've gone, it could well be a big deal.