I think dude really did get his love of wrestling back and as time passes, he doesn't want to be the "bitter old fukk who ruined AEW" narrative as his lasting legacy. I guess dude could quit but I'm not sure how his contract works and if Tony has any say about that kind of decision. So far it's pretty clear Khan wants to keep him as an option in case he needs him but it seems both sides refuse to let this fukkery go and will do whatever it takes to make shyt difficult
If he gets out of his contract then he should just wrestle overseas and get a nice run to at least retire on a more positive note. Punk's ego is too big and he sees himself as too big of a deal for All Out to be his last wrestling memory. Thing is, he probably prefers to make shyt work with AEW than go back to WWE. In AEW he hates a couple of people and is frustrated not everyone sees him as a guy worth following/listening,
but WWE is a whole different level of problems.