[Mr. Johnny 5]

Spoiler for manga:

No. This is a spoiler but No Obito died indeed.
It is unknown how Kakashi got his MS but i think is safe to assume that there are different ways to unlock this type of Sharingan.

Perhaps because the MS is obviously looking different it may have other ability's...and yes the evil method are usually the more powerfull methods (and easier in a certain way to obtain)

Kill your best friend.....safe your best friend!? It's insane but perhaps Kakashi finally got over his greef and sadness and evolved himself and his Sharingan!?
Never mind that's just a stupid theory...