Why they still didn’t add a Lich King skin on Rein?
Ultimate is easy, he just stick his sword into the ground and stun everyone in front of him.
Other abilities are not as hard so is there any chance to add this skin?
Or Anub’arak skin on Orisa, for example her Ulti will look like some dark stone or something and there will be a lot of bugs around.
There are many many characters in overwatch and on every one of them there could be a wc skin, Genji and Symm already have one, i know.
I just wanted to share an idea that is stucked in my head. 
Ofcourse there are so many possibilities how characters of Overwatch can have skins from Warcraft. And not only Warcraft, Starcraft too. You can see Nova, Kerigan Widowmaker and Zarya Diablo skin. Also it could be Orisa with Zegatta (or how is her name was?).
Point is, unfortunately, Blizz do not accept any ideas from players. Even if they are so cool