I don't know if you mean the scenes that someone posted here on the board from Season 5 or from HBO. I don't think I've seen new seens on HBO yet. But from the clip that was posted:
I agree, although very short, it left me even more anxious to see the next season. What I got out of it:
1) It appears someone is after Tony with Carm telling him she's afraid after looking out the window. Who knows, maybe it's Furio
2) By Tony's comment, "There will be no separation/divorce" I assume there "may" not be.
3) Tony's comments about Furio indicate he's history if he does come back. Yet, someone posted that Furio isn't due to come back, so who knows.
Then again one good thing about The Sopranos it is so full of surprises, you never know what may happen next.
TIS