You know, I started wondering, with Madara fully powered and the Juubi, more powerful than before, running wild might this be the last year with Naruto chapters? I mean This combo is way too powerful and I can't think of anything Kishi could do to top that after Madra is beaten. Sasuke allies with Konoha, there might be a duel with Naruto for the Hokage seat later but there won't be much going on, leading to that I would assume. So what could keep the Naruto story going?
Gripping far it might be that the princess Madara mentioned last minute comes as corrupted and threatening the world but that's a bit too far fetched I'd say. In terms of power level I can't see much more happening. Keeping the Ninja alliance together in peace is another challenge but this won't be into Manga chaps, that I'm sure of.
Surely, it will take a few months to close this last phase of the war up but I doubt this will take the whole year so what else could be? If you have some Ideas I'd like to hear them.