You can't "lock" something that doesn't exist.

[Halivel]

Which make Hrothgar a good addition to the game, because it doesn't use a doctored Roe model, its entirely unique.

Well, technically we will know only after 5.0 release when certain part of community will investigate it. There is high chance that they share body with Roes. Fur is a texture most likely, not part of 3D model itself.