No, I'm suggesting that Kishimoto will further develop the side-plot relating to what Itachi said to Sasuke about there being three Mangekyou Sharingan users by making each Sharingan user have a different type of upgraded Sharingan...

This is going off into theory land, but maybe
Itachi -> Genjutsu (Tsukiyomi)
Sasuke -> Taijutsu (Something related to that theory about Sasuke using Orochimaru's Sword)
Kakashi -> Ninjutsu (I don't know... but Kakashi's supposed to be a uber Ninjutsu guy or something =p)