I have read the manga several times and I still do not get it. Kishi is just trolling left and right. So if someone can clear things up it would be helpful .
1) Wtf did Madara do to the kages? Kishi does not go into how he defeated the kages, he just shows up next to Obito without a stratch...
Ok so it is confirmed that Sasuke is going to bring Orochimaru back somehow. I am thinking though a couple of things can go wrong because Sasuke can not expect things to go his way:
1) If Sasuke brings Oro back, be that through body transfer whatever, wont Oro remember what happened to him...