WOW! How in the world does he balance the demon fox's chakra. Sage mode is supposed to be all about the balance of inner and natural chakra. With the choas of the fox's chakra it should start to mutate him. If this means that he has found a way to pull demon fox and sage chakra, we are going to see some cool new strength from Naruto. Sasuke better watch out now.

Naruto is a very interesting character. He is ever evolving and adapting to any change. Although he does'nt realize it, he actually is a genius! He tends to become stronger with each challenges he faced. He can find ways to improve himself and overcome obstacles. Who knows? He might be able to even control the demon fox in the future.