They pretty much wrapped it up. His criminal life starts in BCS, and he's dead by the end of BB. The only other thing they can do is somehow go back further to when his son is alive, but you'd have to de age him.

I always feel for his grand daughter, in the end he didn't get money to her, it was all for nothing. At least Walt found a way to get money to his family. I always felt Jesse or Saul should have found a way to make it right and get Kaylee the money he wanted her to have