I found out something that was overlooked !
After Naruto gets the Bijuu chakra and learn all their names !
The very next chapter Ao says something very important in his Mind at the Shinobi Headquarters
Shinobi: " Did you feel that just now ? I cant belive that , but there is no mistaking That's the power of Nine tails "
Ao: " Yeah..." ( But if feels a bit different... I can feel something else...)
I belive Ao noticed that the Power of Nine tails and the Nine Tails changed somehow after Naruto got the chakra from the Bijuu's that means when the chakra of the bijuu's will kick in even further Kurama will be more different....
Conclusion: Something will happen to Kurama and Kurama powers !