I'm guessing anyone and everyone died that's connected to the blue meth including Lydia. Maybe Jesse kills Walt but I don't believe grey matter gets M60d but he uses them to somehow get the money to his family (donation, threats, etc) and in the process hurts their brand.
Again seeing Gretchen dies does nothing for Walt IMO, it did enough seeing the interview on TV and hearing about the blue meth.
My body is ready.
I am a genius. Glad that Jesse doesn't kill Walt, did what he should have did in the beginning by telling Walt to do it himself.
Walt maintains his blue meth legacy, sets up his family, and takes no glory for it.
My man.