Let's say he utilize a thousand clones, then forming Oodama Rasen-shurikens on his 2 arms, and a few more chakra arms, so let's say he have a total of 5 Oodama Rasen-shurikens on every clone, he will have a total of 5000 giant rasenshurikens.
I'll be looking forward to Naruto vs Sasuke.