Let propose another outcome for Sasuke vs. Naruto. Let say their problem is similar to Vegeta vs Goku, and this is the fight that happened between Goku and vegeta before the wicked Maju Bu emerged.
Now, in DBZ, in order to put an end to the never ending rivalry, Goku chose to lose technically against Vegeta. Since I am convinced that
the retarded Indra and his people are butthurt over being losers and not understanding why, Naruto could chose to lose to Sasuke to cool him down. Then, immediately after he loses, the Rabbit Bijus will emerge and start to Kick Sasuke's ass.
Then, Naruto come back to kick the Rabbit ass just as Goku was the only one able to stand against the bad Majun Bu.
This could be a solution to Sasuke's problem as he help again Naruto fighting the Rabbit. The only problem is Naruto already chose to lose once against Sasuke.
well, UchihaSuke sucks just like all the Uchiha who did not inherit Itachi's will of fire.
One thing is certain in the upcoming battle:
The Worst Thing Naruto Can Do To Sasuke Is to Show Him that No Matter What Power-Up he will get, he (Sasuke) will never be able to defeat him (Naruto)
Killing Sasuke is not an option, though it could fix the problem - No uchiha for Indra reincarnation unless Sasuke leave an egg while dying.