I agree that the next arc will be about akatsuki. Naruto will have to deal them then towards the end of the arc, Sasuke will return just in time to save Naruto and out itachi, or die trying.

Also, i think that Sasuke will go and try to use Oro to get power, but seeing as he doesnt know Oro's true intentions for him (does he?) Oro will be discreetly manipulating him the whole time.