Great chapter. Alot more character developement which I always like to see. Yamato is a scary dude, its like he has two personalities or something. He's becomming one of my favortie characters, plus wood jutsu are tight. I guess its clear that Sai is going to turn on team Kakashi....his fake smile comment was kida creepy, I wonder what he's planning.
When they finally do see sasuke again, I hope he's a complete asshole to Sakura. Her denial is about as worse as Naruto's. I bet Sasuke isn't punching people at Orochimaru's castle if they something bad about her.
And I still think Yamato was looking at Sai's mask. It seemed like he was going through his bag because Sai's kunai and scroll (drawing pad) was on the table next to the bag. Tsunade did tell him to keep an eye on Sai afterall. Yamato might have found those secret orders Sai was given earlier.
Either way we need to get to this bridge, all this is fine but Ive been waiting for months to see who this spy is.