I've been reading a few threads about the next manga chapter to be released and it seems that people believe:
A) Either Sasuke will meet up with the reinforcements. or B) Sasuke will run into Itachi and Kabuto.
I am wondering why people don't seem to think he will run into the 5 Kage and Edo-Madara? To me, this seems much more likely due to the following facts:
1.Kishi hasn't shown the kage's battle in the manga for quite a few chapters now
2. Sasuke was going in to OPPOSITE direction of the reinforcements. If you don't believe me reread it and you will notice the direction of the sun.
3. Naruto is nearly out of chakra and in no state to fight a fully replenished Sasuke, which would end up happening if he switched direction and went after the reinforcements.
4. This gives us an opportunity to see Sasuke's new powers, whether it be to test them against the kage or the Edo-Madara. OR, better yet, a chance for Sasuke to learn some things about his clan (maybe things even Tobi lied to him about).
But, there's also the matter that last time Sasuke spoke to Naruto he said that Naruto was the one he was going to kill first, that being the main reason why he'd decided to allow Tobi to transplant his eyes, anyway. So who do you think he'll run into? And could it be he sensed someone's presence behind him on that last page and that's why he turned around?