Originally Posted by platypus
The question was not WILL sauske come back, it was "what would it take."
I dont think he would ever return on his own, so it would take someone knocking him unconscious.
I assumed that the title meant "What would it take to convince Sasuke to return to Konoha?" In which case, I answered by showing that he would never willingly return. But if the question is "What would it take to get Sasuke's body within Konoha's walls, no matter his state of being at the time", then unconsciousness and death are about it. Oh, and also, doing nothing and letting Sasuke commence his plan to attack the village leaders. He would definitely need to be within Konoha to do that.