i think manny will likely retire win or lose what else does he have to give to the sport? he has so many other responsibility's aswell. floyd will continue to have his final fight with his showtime contract then he will surely hang them up especially if he is undefeated (i think he will take on brook)
think they'll have a rematch unless there's an early stoppage, too much money to turn down. don't think pac will retire, reckon he'll look to have a fight in the Philippines before he hangs up his gloves.
I sense some judging shenanigans ensuring a rematch. Only way there is no rematch is if it's a clear and boring UD.
If Mayweather wins ( which he probably will ) there will be no rematch. He will fight a good but very beatable opponent and retire. If Pac wins, there will be a rematch. If Pac loses, his stock drops like a rock. He might as well retire.
......and everyone will realize how dumb they were to think this matchup would live up to "SUPERFIGHT" status.