Phil Leotardo is the boss in NY now that Johnny Sack is in jail so I don't think that the peace Tony made with Johnny means anything now. Expect trouble. Also, there is word that there is going to be a huge surprise at the end of the first episode on Sunday. Oh, and one of the main characters dies in the first episode, they just didn't say who.
I've seen the season 6 trailer and it looks like the usually calm Bobby Baccala is pissed off about something. I predict the rumors about Vito's homosexuality got pinned on Bobby since he's the other fat guy in the family. That would piss me off too.