The thing I love the most about Breaking Bad is the theme of emotional transformation. This idea parallels the personalty shifts depicted in the short novel Heart of Darkness, and the movies Aguirre: the Wrath of God, The Mosquito Coast, and Apocalypse Now. I constantly keep this in mind when observing Walt's actions, especially since last season it seemed as though Heisenberg had completely taken over Walt's personality. In the two new episodes you can see the panicky/bossy/by-the-book Walt we all used to know and love coming back to light, but I'm not sure if this is just a diversionary tactic in hopes we will have forgotten what a monster Walt has become. If Walt, not Heisenberg, is actually taking over the personality again and he is now forced to see the full damage he has caused to countless people, I really wouldn't doubt if his last words are something along the lines of "the horror, the horror."
This is really interesting, as I just watched Aguirre for the first time the other week, and it's a parallel I can definitely see.