I hope the crow is an anti-EMS passive activation jutsu, or more realistically that Naruto begins anti-genjutsu training like Deidara did to kill Itachi with. I find that more probable and rewarding in the end b/c Naruto achieved it himself.

But I really do wanna find out what Itachi "gave" Naruto through the crow chakra. It'll be a life-saving "something" I bet later on, at some crucial moment.