Anyone wanna speculate about how it's going to end? I'm going to copy-paste what I wrote over at Fool's Gold, which got no responses

OBVIOUSLY THESE ARE SPOILERS I think Walt will live, but possibly end up in jail. He's clearly the bad guy at this point in the show, but they've made it pretty clear that the good guy is not guaranteed to win; in fact, the good guy is probably more likely to die in Vince Gilligan's version of the Albuquerque meth trade.

S05E01 shows a flash-forward of him buying an M60 and ammunition from some random black market dude. His ID card tells us that he is now using an alias and is carrying a New Hampshire drivers' license. If we assume he has left New Mexico, why would he be coming back, and on whom does he plan to use this gun?

First thought would be Declan. By S05E08 Walt has declared himself "out of the game". However, at the end of this episode Hank finally realizes that Walt is Heisenberg. This could lead Walt to flee, and since he has quite recently become the cook for Declan and his crew, it would not go over so well with them that their chemist just up and leaves. This may lead Declan to order the killing of some or all of Walt's family. Walt somehow hears of this and comes back to New Mexico to avenge his loved ones. The only reason I think this would not be the case is that I feel like the writers would like to end the series on a darker note, with Walt using the gun to kill someone generally regarded as good (such as those speculated below).

Second thought is Hank. In S05E08 Hank realizes that Walt is Heisenberg. It's plausible that Walt flees Albuquerque to escape Hank, but why would he come back to kill him? I can't put this one together, but it's certainly a possibility.

Third thought is Jesse. Walt and Jesse have been, what can be called "friends" off and on throughout the series, but Walt is not the man he used to be. He is not at all similar to the Walter White from Season 1, Episode 1. He killed Mike simply because of his absurd ego, and it's not out of the realm of possibility that he has come back to kill his former partner. Perhaps Jesse has agreed to cooperate with the DEA in the search for Walt, and he just can't allow that to happen. The whole thing would come full circle if Walt decided to off one of his former students and his only "friend" throughout this whole mess.

Others who I think have a good chance of dying:
Skyler White
Walter White, Jr.
Holly White
Saul Goodman
Steve Gomez