Check out this theory (thanks Chip). Suggests that a certain youngster may not make it to the end of the game.... or perhaps a couple of folks. And here as well for more fun theories.
I find the first one a bit more interesting than the others--that Walt takes a bit of the habits or tendencies of those he kills. Unless he runs them over?
Speaking of which, what are folks' favorite BB episodes? Bill Simmons asked Chuck Klosterman on their largely BB-focused podcast (do note that they address this dynamic as well) this question. They talked about the train heist episode, the end of Gus episode, the fly episode, and a few others. I think mine might be the one where the cousins come after Hank. Of course, my favorite one is probably the penultimate episode of the series, if the patterns of the Wire and Mad Men play out here.
What say you?