I'd really just love to see Tony forced to choose between his two families. To prevent his immediate family from abandoning him, he takes the Feds up on their offer OR he stubbornly stays in the life but Carmela and the kids want nothing to do with him because of everything they've been subjected to. They put up a united front and tell him, it's them or us, and the series ends with Tony alive but subjected to a fate worse than death. Paranoid, alone and old before his time (he does look like shit for 47).