The best part about the show is it keeps you guessing. They pretty much set up the ending in the first episode of season 5. We know Walt goes back to town with Ricin and a trunk full of guns, but we still don't know what he plans on doing to whom and how. We can deduce that Walt plans on getting his money back from the neo's as well as killing them, but what will happen to Jesse? Walt's family? Walt himself?