Haven't seen this being brought up yet so let's go.
Awhile back, alot of discussion and debate went on about the other half of Kurama's chakra.
Notable theories were:
The half is gone for good.
The half would restore itself in time.
Kurama is just as powerful without it.
Now, more recently we have Orochimaru (glad to have ya back) undoing the reaper death seal and not only restoring the souls of the deceased Hokage but the chakra in his arms.
It wasn't illustrated or highlighted... but is it a possibility that the sealed half of Kurama was also returned to it's owner.
If so would this see an increase in Naruto/Kurama's current power? Or perhaps cause problems, being instantly bestowed with more chakra, perhaps causing a shock to Naruto's system and the link he's made with the USA (United Shinobi Alliance).