I think that the power was only for a short time, I don't think naruto has this symbol on his back anymore, which was a sign of the rikudou powers
I also came to the conclusion that the tomoe in sasuke eyes was also a sign that the had gained the Sage power also, he probably ran out of the chakra.
Idk what do you guys think, haven't seen naruto fly yet,
but do he really need it? he has the other half of kuruma so that should make up for it, and sasuke still has the rinnegan. just not the sharinnegan.
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I also came to the conclusion that the tomoe in sasuke eyes was also a sign that the had gained the Sage power also, he probably ran out of the chakra.
Idk what do you guys think, haven't seen naruto fly yet,
but do he really need it? he has the other half of kuruma so that should make up for it, and sasuke still has the rinnegan. just not the sharinnegan.