After this episode, Jesse has to be the one who kills "Meth Damon" Todd, no question. Walter can gun down Jack and the other neo-nazis, but Todd is for Jesse alone.
Also, I think what this episode highlighted the real reason Walter did all this. It wasn't about providing for his family. It wasn't about greed. It wasn't even about wanting to build an empire. It was all about the name. It was all about wanting to feel as though he accomplished something out of life, something that he would be remembered for, something that would make his mark. Consider what we know about Gray Matter--Walter for as of yet unknown but obviously personal reasons, sold his share of the company and walked away and the end result was that his ideas and the company he founded went on to make billions while he became an over-qualified high school chemistry teacher, just one more anonymous nobody to the rest of the world. And after seeing that Charlie Rose show with Gretchen and Elliot, saying how he contributed nothing but the name of the company, and what was being reported about the Blue Meth, and knowing where he ended up, Walt realized he was once again about to become just another nobody with nothing to his name. And that's when the part of him that was Heisenberg said "F*** that!"
I've always thought that Walter, at the end, was going have the mindset of "If I'm going to die, I'm going to do so on my own terms," but I think it's also clear that he's also going to essentially say "If I'm going to die, I'm going to take everything I've built with me. Because if I can't be remembered for building them, I sure as hell will be remembered for tearing them down."
Again, think of the Shelley's "Ozymandius" for which last episode was named after. Yes, the statue of Ozymandius is "shattered" and a "colossal wreck," but it's still there all the same, while everything else around it, including the empire the statue's namesake once built, is nothing but a vast desert.
the coincidence is mind boggling. 
