Some other post talked about dividing Naruto's chakara into 1/4's. I disagree with that idea.
It should be 1/3 Spiritual, 1/3 Physical, and then 1/3 Either Nature, or Kyubi. Thats how it has always been in the past.
The whole idea with Sagemode is staying in control, and perfect balance. Naruto can't control the Kyubi, so incorporating that into Sage mode at this point doesn't work.
However! He can use 9-tails as a way of healing himself and recovering from major attacks faster.
If Pa-toad is one with Naruto when fighting, does he get any of the 9-tails chakara?? WHAT if Pa-Toad becomes a miniature Kyubi on his shoulder!!! HAHAHA