You've gotta see Rocky III. It was the best Rocky since Rocky I. Except for maybe Rocky II.
I want to see the one where Sylvester Stallone comes to the center of the ring pushing his walker. Let's see. The villain could be the Ice Man they found in the Alps a few years past. He could melt and come to life. He will be madder than Hillary on a bad hair day because his compatriots left him there to die. A guy that tough will be hard to beat, and he will work his way to Rocky Balboa killing all his opponents because he sees in their face the guy most responsible for leaving him.
He will prove he is a villain because he will hammer the cop just about to arrest the guy that stabbed OJ's ex, so OJ's quest must go on.
The rest of it will be the usual Rocky formula.