Quote from BimboSilly
The thing is that, there seems to be a pattern emerging. The mangaka seems to like "following history". for eg- Ino, Shikamaru and Chouji's parents fought as a team and so do the children....u will see the subtle signs here and there...so I am guessing Naruto and Sasuke will face each other as opponents once again with even better skills, this is almost recycling but this why most shounens get drabby However, I am pret-ty sure, the mangaka would have some more secret tricks under his sleeve and I just hope I could be surprised enough...
Maybe they'll fight again, but with a different ending. Obviously, the techniques they use will have to be different.
Personally, I think that they reason why the past ties into everything in Naruto is because one of the themes in the story seems to be letting go of the past and looking forward.