Orochimaru grinned as he sat on top of a tree while he watched Kakashi train Sasuke in a futile attempt to probably take down the Kyuubi container.
Orochimaru smirked malicious maybe he should make an offer to team seven when the invasion begins and give them so presents and maybe the right motive to leave Konoha and join Otogakure.
And with the power of Kakashi and Sasuke on his side Orochimaru will finally become unstoppable especially since he has two potential sharingan user under him.
But another thing that made Orochimaru slightly confusing was the fact that Sasuke hasn't unlocked his sharingan as the snake sennin thought that Sasuke probably hasn't meant to right emotion to finally unlock his sharingan.
Maybe Hiruzen or potentially danzo knows something that Orochimaru doesn't know but whatever it is Orochimaru will have to bid his time and wait for the invasion to begin so his plan can finally be set in motion.