those who have read manga chapter 477 ...

OMFG !!!!!!! A random, yet epic appearance by Itachi!
Here I had despaired that we'd never see or hear him again and there he was in all his glory! Looked pretty pissed off too...

But I swear if this is a fu**ing genjutsu again, I'm through with Naruto!
The chance that it's the real Itachi is very, very small, but I can hope!
Anyway I'm going to be so pissed if it's Sasuke or Madara's genjutsu, because seriously what's up with all the illusions it's getting really boring!

There are 3 possibilities...

1) It's a genjutsu (I hope not)

2) It's another gift from Itachi to protect Sasuke (Itachi kicks ass even after death! )

3) It's the real Itachi! Which would mean that Itachi hasn't died or is immortal just like Madara (I know it's highly unlikely, but wouldn't that be awesome? )