Sopranos Ending

Apparently the hot thing to do is try to guess who The Sopranos will end. I have no idea, so I'll just try to come up with a scenario I haven't already seen before. The FBI pinches Tony. It turns out they've had what they need to make a solid RICO case against him for some time.

The reason they haven't arrested him is that they think he and his "glorified crew" are small time. Their interest in arresting Tony is to get him to flip on Phil and the New York mob and they've been biding their time until relations between Tony and Phil get so bad that they think it's realistic to think Tony will be willing to be a witness -- after all, what does he have left to lose? Show ends with Tony broken and friendless in Arizona.