So now everyone and their mom knows that neji is dead. But i believe that Nejis death just did something for naruto that will help him make the harder decision in the long run..
I believe that apon witnissing nejis death naruto will open his eyes and realize that he will not be able to save all of his friends. especially in a world where you have to kill on a regular basis.
After this war arc is over is when this will all resonate with naruto. He will realize that trying to retrieve sasuke is pointless and at some point he will have to let it go and focus more on the people that are still close to him. this is where the naruhina/narusaku thing will come into play. Sasuke will try and do something that will put his friends in potential danger and naruto will respond by killing him.
I do not believe sasuke will come to the rescue or become a good guy again at all. I mean the whole shippuden and a good part of the regular series show sasuke being an antagonist. It would completely ruin the whole story if all the sudden sasuke decided he was tired of being a bad guy and just hopped teams. even if he did, could he be trusted?? he already abandoned the leaf once. Whos to say he wouldnt do it again.