I don't think Naruto would kill Itachi, because if he did, that would ruin Sasuke's role in the show, even his life's goal, so Sasuke has to kill Itachi, besides, that would be a good match other than seeing red chakra beating the bloody hell out of "EVERYONE" since Naruto can go to 4 tail kyuubi but loses his mind, so he only wants to kill everyone, and not just a certain target, and Im getin kinda tired seein his kyuubi kill everyone, or defeat everyone, I need to see Sasuke take someone down for a change, other than the killing of Oroch.