Death?

-Tony Stark survives! (plus Yinsen in the soul realm)
-Cap returning the stones (Cap + Redskull confrontation!)
-Natasha comes back to life!
-Cap's conversation with Peggy in the past
-'Old cap' prank (I got that idea from someone else on Wattpad but I wrote the scene)
-Loki is alive (Thor yells at him)
-Peter & MJ being kidnapped by Beck & escaping
-Harley flying the Iron Man suit!
-Tony talking to Peter which is pretty much Tony reacting to Spiderman Far From Home
-Cassie's a little kid (she got snapped in my version) and she and Morgan are best friends
-Peter & Morgan being siblings
-All the kids/teens being friends (Shuri, Ned, Mj, Peter, Harley, Lila, Cooper, Nathaniel, Cassie, Morgan, etc)
-Smart hulk and fat thor are both optional
-Peter & Shuri fix Vision
-Huge avengers party with stargazing and several 'YOU'RE NOT DEAD?!?!?!' moments
-Loki lifts Mjolnir (thanks, Morgan!)
-Pietro returns because we have time travel so why not
-A few one-shots of independence day, Peter's birthday, etc
-NEW: GET HELP and other scenes from Thor and Loki's childhood ;D

It's a sequel fixit, so Endgame and Spiderman FFH are still 98% canon in my version. The only direct contradiction is that Cassie is still little because I wanted her to be friends with Morgan.

Also, OBVIOUSLY (since this is fanfiction) I don't own the characters/world/etc.