it will end with just the sounds of naruto banging hinata off screen and the sounds of sasuke banging sakura at the same time then they will make a sexception and go back in time to party with everyone
i think Naruto is going to sacrifice himself for everyone, then Tsunade is going to give her life to bring him back making him the sixth. Sasuke stays good and rebuilds the Uchiha name in Konoha.
( i dont think Sasuke really wants to be Hokage, he knows that him and Naruto are destined rivals after Hashirama's story. He's just trying to be a good rival, after everything Naruto wouldn't want it any other way honestly, and he knows that)
suddenly an ambulance arrives for neji and runs over countless ninja including sasuke and naruto, then the bad guys win due to an ambulance accident, the end.