Considering the current situation the manga is in and the possible way it's headed, i have a few theories of what might be coming up in the next few arcs.
First off, the Rock are headed to Konoha to infrom them of Sasuke's attack on Killer Bee. After Naruto and the village rebuild and recover after awhile, the Rock team is bound to show up. Once their, it's possible the team from the Rock will begin to plan possible plans of action on the Akatsuki threat. The saying goes "The enemy of my enemy is my friend" so wouldn't it be logical for the Rock to join the Leaf to fight against Madara and the rest of Akatsuki?
Also, Naruto's seal is almost completely broken, and Sasuke is on his way to Konoha. If Naruto and Sasuke square off, there will surely be Kyuubi activity, resulting in the final releasing of the seal and the distruction of Naruto, Konoha, and the series. To escape this fate, Naruto must find a master sealer; someone who knows what and how to deal with Jinjurikin seals, and who else would be better for the job but a Jinjurikin himself. I'm talking about Killer Bee. With the possible Rock and Leaf alliance, it would provide a better possibilty for Naruto to meet Killer Bee. Killer Bee has mastered his Bijuu and would obviously know a great deal about seals to be able to perform maintenance on his own seal, so wouldn't it be logical for Killer Bee to be the one to help Naruto fix his seal and learn better control over the Kyuubi? Killer Bee wouldn't just show up in the series and not get caught by Akatsuki to just disappear, so i believe he will have an important role in helping Naruto gain control over his Bijuu.
Talking about Jinjurikin, we still have yet to see anything conserning Jinjurikin 5-7, so it's possible they may have a part in the following development as well. Madara is the ultimate power as of now. However, i doubt he'd be able to take on 4 allied Nations (Leaf, Sand, Rain and possibly Rock), all the ninja in their hidden villages, as well as a team of Jinjurikin. We have no idea if they have been captured or not, so it's very likely that they have yet to be found. Although it's a rather lame idea, a team of uber powerful Jinjurikin seems like the only possible way of taking down Madara at this point.
However, these are only my ideas i came up with, considering the possible plans Kishimoto has instore for the story plot, as well as my own personal wants.
That is one complicated theory.

But, of course, it has a great foundation. There is a big possibility that it can happen.

I can't wait, for the Naruto vs. Sasuke arc.

So many can happen.
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