Board Thread:Naruto Discussions/@comment-9567825-20140910102105/@comment-10330822-20140910111618

I don't think Sasuke wants to kill the Kage because he is evil, rather because he wants to remove them from power. Sasuke plans on duplicating Indra's path of forcing peace on everyone through his near unstoppable power.

It's just as Sasuke said, at this point only Naruto can stop him, especially since the Hokage have been released, and Kakashi and Sakura are in no capable position to fight him.

Basically if Sasuke can kill Naruto, he can do whatever he wants.