in manga there is no crow with sharingan eye...i dont know where did u get it.....
and it's apsurde for naruto to have a sharingan......that would make kishi a fool, wich he is not, for sure....
anyhow...
Itachi wanted for sasuke to come back to konoha as a hero who defeted missing-nin, itachi, and ti not know the trouth....
but, he also knewd that sasuke's like an empty book, and he was afraid that madara would write anything he desire in him. that's why, he realised that if something like that would happend, he must stop sasuke.... buy saying to naruto that he hopes that hhe wont have to use it, meanse, either that that power WILL HURT/KILL sasuke (wich itachi doens't want to happen), or that by using that power, it would mean that sasuke will really be influenced by madara's desires, and that's why itachi hoped that naruto wont need that power.....cuz deep with in him, he wants to sasuke to be recognized as a hero, and to revive the uchiha, new uchiha clan, wich wouldnt be any kind of a treath to Konoha.... they would be reall protector of konoha, and fire country.....
these are mostly FACTS from what happend in recent manga....
but for naruto to have a sharingan..... roflmao!