I think the "flash forward" was definitely from the series finale. That being said, I think it's totally unpredictable what will really happen. At this point, I'm only sure of one thing:
Out of Walt, Jesse, Mike, and Hank...at least one
of them will die. Probably two will survive, but maybe just one. The "one" is either Walt or Jesse, easy. And that will be the catalyst for S5B. The last eight epsidoes will be Walt vs Jesse vs ?.
My money is on Walt killing Mike, creating an irreparable rift between Walt and Jesse. Thus, the second half of the season is the big showdown we've all been waiting for: Walt vs Jesse vs Hank.
In that case, I say Walt kills Hanks, then Jesse kills Walt. That's the way I see it playing out.
I'd bet real money, however, that Mike won't make it through the next seven episodes.
Edited by Francis Buck, 16 July 2012 - 12:01 AM.