Gai goes 8 gates and dies. Naruto Bee and Kakashi find some lucky a#$ way to beat Madara & Obito...Konoha 11 shows up sometime during that....Sasuke goes to the one who knows everything and decides like a spoiled child the people of Konoha who did nothing need to die and not just the eldars effectivlely spitting on his brothers actions. Naruto confronts him, and after a long fight one of three things happens.
1. They both actually die...not the one I want
2. During the fight Naruto ends up not delivering a killing blow and is defeated once again, but when he comes to Sasuke is still there and leaves without saying a word. Sasuke becomes a wanderer and Naruto returns as the Hokage.
3. Sakura decides to run imbetween the two effectively getting killed...causes the end to the fight or Naruto to push to end up winning. He leaves Sasuke alive and goes to be Hokage.
Relationship wise at this point it seems like Hinata or no-one as Sakura still loves Sasuke and that won't change in my opinion. Just look back to the medical ninja fiasco chapters. Probably would be revealed as some time in the future or it showing obvious signs that a relathionship intends to develope in the future!