The current plans call for The Undertaker to get involved in the Edge-Vickie storyline. It appears as though Vickie will use her 'boss/general manger' powers to make Edge (who screwed her over by cheating with the wedding planner) to face 'Taker, likely at SummerSlam.
The entire NYC parking lot brawl featuring John Cena vs. JBL was shot earlier in the evening and was edited in various spots. The only part that aired live was when Cena brought out the car on a forklift and they finished the match from there. It came across really lame and you could tell that everything had been edited when they were fighting 'live' in the actual parking lot. I will give Cena credit for the ending spot crashing through the car windshield.
Speaking of John Cena, he had several cuts from the parking lot brawl, mainly due to that ending spot with the car windshield. He'll be fine and obviously won't miss any time.
Nothing happened after the PPV except for several drunk guys getting into a fight near ringside.
