Just Thor time travelling and deciding to use this oportunity to be the best brother in the whole world, in hopes that he can change things. (and maybe he can or maybe he can't. Maybe Loki was always supposed to end up captured by Thanos and tortured and brainwashed -we all know he was really right?- and lead an invasion to earth, but at least now Thor has difinate proof that that was what happened).
Anything along this theme would be appreiated. Even if it's only Thor going back in time a little way and replaying the events of the first thor movie, or the avengers with future knowledge at play. And I would just love adorably confused Loki.
No pairings if possible, gen very much preferred.