hmmm....don't you guys think that kakashi's new sharingan is not written in the scroll or book of the uchihas, in their hidden meeting place? i think all types of sharingan are written there, and all i know is that the mangekyou sharingan is the last type, which is the most powerful.
yeah you have a point that it look different coz kakashi is not an uchiha. and maybe kakashi has a new unique technique using it.
i still believe it is a mangekyou type of sharingan (for now). buy maybe im wrong, later we will find out what it is, or maybe kakashi will name it by himself hehe..