That is a good question. I don't really want to see it end where Tony dies, although I suppose it would be an appropriate ending.
Adrianna gets whacked; Christopher has a major falling out with Tony and joins another family.
One of the Soprano kids get accidently killed, bringing Tony & Carm together to seek some kind of revenge.
In the end it is only Silvio that remains by Tony's side, leaving Tony with doubts about this "thing of his."
Of course final scene, like mentioned above...Tony at the bar at Bada Bings smoking a cigar............and just before it fades to black, in the far corner barstools, there's SC, Lori, Geoff & TIS laughing and having a good time.
TIS