I think of our main three cast members (Boyd, Ava, Raylan) only one will be left standing and they won't leave Harlan, as in they voluntarily stay there to live. My money is actually on Ava. Just because it seems like Boyd/Raylan actually cancel eachother out in a way. All the bad guys are toast except Duffy. Tim might be screwed too. Rachel and Art will probably be ok.