Having successfully studied with snake hermit. Kabuto finally achieve sage. Where Orochimaru could not achieve. Just like Naruto, Kabuto has a colored form under his eyes. Perhaps violet color when compared to Naruto who have red color around his eye..
So having studied with snake hermit. Kabuto managed to unlocking the secret technique that turns into a dragon. Surprisingly, Kabuto is able to use Sasuke’s friend abilities.
So most likely, Kabuto will try to take samples from Sasuke to make him more powerful and invincible. This may happen. Because at the beginning of the meeting between Madara and Kabuto. He has asked Sasuke as a reward.
