This replaces the meshes of the wolves with that of the Dawnguard Husky. IMO this makes them look better while retaining a wolf like coat. You can use other wolf retextures as long as you install this mod first then the other mods retexture. Also, in my opinion the wolves look much better suited to survive the harsh skyrim weather. 

Update: Added a version with yellow eyes. 
UPDATE: Edited the ears to be more wolflike. 

bittu0812 / SurprisedRook made a nice showcase for the mod