Naruto cannot win against Sasuke as long he gets new power. Sasuke has not use his Rinnegan ability at fully extend. Kurama gathered natural energy for Naruto, but he reached almost his limit. 2 Rasen shukriken won´t defeat Sasuke.
Sasuke noted that Naruto had intent to kill him now, and he was shocked by how much Nature chakra Naruto gathered.
Also this harkens back to the Hashirama vs Madara battle, it went the same way.
In the end Hashirama won by entering Sage Mode and going all out despite that he didn't want to kill Madara.
Sasuke's new power is simply his version of the Kyuubi Susanoo except with all 9 bijuu.
Now Naruto gathered a huge amount of chakra and released his final mode, these two modes they have now will decide the fight.