That's gonna be cool if so, but I wonder if a sharingan user can wield a rinnegan.
I'm also wondering on how the rinnegan is gonna play a part. The question lies on how is it gonna be utilized (perhaps controlling the gedo mazo and/or juubi), or rather by WHOM. Another, if it's already in Madara's hands or if Madara is about to get it.
Why wouldn't Sasuke be able to weild the Rinnegan? We saw danzo with over 20 eyes on his arm, a face on his shoulder, the First Hokage's DNA in his body, etc. We saw Kazuku with the transplanted hearts of four other ninja in his body, and used their chakra. Transplanting body parts and using the powers of the original owner is nothing new.
I don't think it's a question of whether Sasuke will get the Rinnegan, but how he will integrate them into his body and how he will use them. If anything, Sasuke should have an easier time using them because he already has special eyes and is used to using special eye jutsus.
My Prediction:
I think team 7 (including surprised Yamato and sleeping chunnins) will go back to konoha for further training.
Karin will be in question, and she'd be a new ally.
Maybe discussions about the new hokage will come to pass [so hoping that Kakashi will be declared the official 6th Hokage], as well as discussions regarding the village's preparation for war (and how are they gonna merge with other villages to form the great shinobi alliance).
Kisame is going to infiltrate kumogakure. It may be possible that he can finally capture killer bee and the eight tails without causing too much commotion or without anyone noticing at all, maybe even without the knowledge of Raikage. He's doing a stealth mission after all.
Sasuke will get Itachi's eyes, hence the EMS. If Sasuke and Naruto fight transpires, Itachi's gift to Naruto will finally be revealed.
Ack, anyways, I'm also thinking that Sakura might be doing a sacrificial move as well. Not sure how though, just a hunch.
I like almost all of this. Sasuke will get the EMS. It will happen soon. Karin will become an ally of Team 7, they've set that up in the last two chapters.
Kisame will get Killer Bee. Maybe Madara and Zetsu will help. Naruto needs to be captured last, so until Killer Bee gets captured there won't be any story pressure on Naruto.
Kakashi will probably become the new Hokage. I wouldn't be surprised if he were nominated and declined, but I don't know who would replace him. Maybe Tsunade gets healed too. It's likely that Kakashi becomes hokage, but it's not 100%.
Everybody definitely needs more training. Naruto didn't use his sage mode against Sasuke just now at the bridge, but the power is not a secret. With EMS, and possibly the Rinnegan, I think Sasuke will have the edge again. With some good training I think Naruto could get back on top in a short while. He's already got sage mode and great power control. What he needs now are cool new techniques. I would love to see him learn his father's flying thunder god technique, but as I've mentioned before I don't know who would be able to teach it to him. Jiraya is dead. Maybe Tsunade knows a little about the technique. Maybe one of the elder toad masters knows about it. Maybe it's written down on a forbidden scroll somewhere. I don't know, but if there's even a chance that it's not lost I would love to see Naruto learn it.
I would also love to see naruto gain even better control over his rasengan. If he could form them and project them the way Sasuke can make swords from his chidori, that would be awesome. If he could learn to form them, including with wind element, without using clones, that would be best.
Also, if Naruto could do as he said and learn to collect natural chakra while running, it would be a huge benefit to his stamina. They said it was impossible (just like it's supposedly impossible to add wind element to rasengan by yourself), but if anybody can do impossible things it's Naruto.
So my prediction in short: Sasuke gets EMS soon, and Rinnegan later. Naruto learns cool new techniques and perfects his existing techniques. There is going to be a period of training and development, and this might cause a time skip.