I remember reading a fic in which Naruto is "killed" by Sasuke, who gets Mangekyo Sharingan after Orochimaru releases the cursed seal. A man then appears in another Elemental nation with no memory, and winds up courting Hinata, only to later be killed. Turns out both the Naruto who was "killed" and the man with no memory were clones, and Naruto is still alive. I don't remember where I read it. Please let me know if you find it.