I think this got missed in the Entertainment forum move...
But yeah, waiting for the next season is driving me crazy!
(Spoilers are only spoilers if you are not caught up)
I'm not sure how they will finish everything off in season 5. Seems like they have a lot to start up just to get the plot moving again because of the way season 4 ended, just to end the series at the end of the season.
The loose ends seem to be
And of course they have to figure out a way to kill Walt. Of course, no one knows if he will die for sure, but the laws of literature pretty much deem that he has to.
But, I could see it being one of those series that because of it's popularity, is extended for one more season past the first projected end date. And that, in my opinion, would make it easier to finish off, cause I don't know how they restart after the big ending last season, only to finish it off 12 episodes later. Would not be surprised to see a season 6.