I agree, Sasuke can't just drop team Taka and Naruto Sakura and Kakashi can't just drop sai, they will go different ways you can't stay with the same people forever:bouncy:
I don't think Naruto would be teaching a single group of kids when he gets to. He'll probably link them all to his chakra. Konoha would be pretty damn scary after Naruto becomes Hokage. The whole village with partial 9 tailed beast+sage chakra.