Maybe. If they do infact show a third naruto.
yes Sasuke does return to the side of the leaf meaning he is once again a good person .But he does not return to the hidden village of the leaf.
For the purpose of revenge...as far as the manga has shown us
He hasn't returned yet but he will be coming back to destroy leaf village unless Naruto stops him.
yes to destroy it.
'Return'? M'dear, there is nothing to return to. They were never a couple, they are not a couple now and there is absolutly no indication that they ever will be. Ever. Naruto, on the other hand...
no he will never come back ever he is a rouge ninja
As far as we can see in the manga....he only comes back for revenge
Sakura and Naruto end up together Sasuke sadly does not return to the Leaf Village
it never says he does and i doubt it but could be that he thinks about it time to time
As far as the manga shows us..he goes back for revenge
Most likely, not. The creator of the series, Masashi Kishimoto personally loves drawing and improving Sasuke's storyline. It will all end in probably, Sasuke returning to the Leaf, or Naruto dying in the line of battle. Sasuke may be severly injured, by I doubt he will be killed.
no