Vince McMahon says he'll leave [WWE] when he dies

Maybe if Hunter could've put that T-shirt company out of business

Exactly. WWE will deify him and he'll be worshipped as some kind of god/genius who "saved us all from the dark and scary territory days". There will be a pay per view premium live event named after him or something like that and probably much more.

Time will eventually catch up to Vince's body and mind, but his legend will never be separated from WWE and probably professional wrestling as a whole.