Heres the dillema with the outcome of the fight as I see it
1) Naruto Wins. Sasuke now probably realizes that
A) Naruto is special (or has the kyubi) (doubtful, but he'll end up staying with the leaf)
B) Feels that Oro cant give him the power he needs (he cant even beat naruto!) and ends up traveling on his own
C) losses all purpose in life and is uberly depressed to the point of not caring about anything (even his own life)
2) Sasuke Wins. He'll realize one of the following
A) Oro is powerful and goes off to get more of the power
B) Goes straight after Itachi
I would find it interesting if Sasuke went to Oro and later killed him cause Sasuke found out Oro is now useless and weak... after that we could do a timejump to when Itachi and co make their move on Naruto. Which could be a week or a month or years after, but I think itachi made a comment they need to act soon cause Naruto is getting stronger (I might be remembering this wrong)