I think Tony Soprano got killed by that italian looking guy in the restaurant, possibly by some of his guys that were fed up with the war with NY and Ton's bad choices as a boss (trusting blood, guys like Chris and Tony B, instead of more capable soldiers led to a lot of resentment towards him, plus him seeing a shrink).

Carlo's flipping results in the indictments of Paulie and most of the old Vito crew. Patsy Parisi is not indicted and becomes the acting boss of the Family, while Paulie gives some orders from the can.

The Family is in bad shape, as it remains only the young, less experienced guys like Little Paulie, Benny Fazio. Maybe Furio tries to come back and take over the Family with a few zips, who knows...

AJ tries to revenge his father but he doesn't have the balls. He gets drunk, depressed, and decide one night to go to Satriale's and insults the guys. He get roughed up, and is more and more depressed after that...

Meadow becomes a successful lawyer.