As the manga revealed 2 chapters ago or so, Naruto converted the kyuubi chakra to the point that other people sensed it as his.
The more chakra a person has the more sage chakra they can handle. So, if Naruto's cloaked form is actually made from his chakra then he can handle a Massive amount of sage chakra! Not only can Naruto make appendages out of his chakra cloak, he'll also have further attack range from the sage energy.
What do you all think?