Man.. the way things are going in the manga.. I'm starting to feel like Madara is just unstoppable. Even if the five kage manage to defeat him, he is just going to regenerate himself and they will be back to square one. I have a theory (That i'm hoping will come true lol) that Itachi will be able to persuade sasuke a little bit and convince him that Tobi and Madara are actually the real issue and not the path he's chosen to take. Idk if Sasuke knows what Tobi's actual plan is but I kinda think Sasuke wouldn't want that to happen. I still think Tobi has a bunch more up his sleeve and we've definitely haven't seen everything about him just yet. In conclusion, I think it may be a possibility that Naruto and Sasuke might team up to face Tobi and Madara because they are the only ones left that actually stand a chance against them and eventually finish their fight later. I'm not sure where Kabuto stands in all this since now we know that if Kabuto dies, the edo tensei won't be undone. Maybe that scroll suigetsu found shows a way to end the edo tensei.
Comment and give you thoughts/inputs!