2. I also don't think that Naruto is heading to Yamato, why? That place is being quarded by Zetzu and he's watching over Sasuke. It would be too fast for Naruto for fighting Sasuke.
I agreed with POW, that it's time for him to leave; but if you think about: where could he made his epic entrance?? Naruto won't go to Gaara, Kakashi or even Kabuto. Kabuto said that even if the summoner of those bodies dies, those bodies will still be intact.
Don't know if he LIED to Madara about this, but lets say it's true; then it could be that Naruto is heading towards Kabuto and if he does: Kabuto's main mission will fail --> killing / capturing Sasuke. ALSO Kabuto's mystery coffin would be having no meaning if he dies..
So he's not going towards Gaara, Kakashi, Kabuto.. the only place where he could be heading to, is where Nagato and Itachi are. And while he's going towards Nagato / Itachi, Sasuke will arrive to. After Naruto owns Nagato and Sasuke owns Itachi,.. they'll fight eachother. THIS IS THE ONLY SCENARIO I can think about!