Wow was always about artstyle, it looked great back then, it looks great now. From what I can see :) not sure why the axe swing is blue though :D
I agree, WoW was never about pushing visuals, it was more about pushing boundaries. Its Art Style is ageless. Playing the game with everything set on Ultra and High makes the game hold up really well. Plus the game has a 4k feature if you have the GPU and TV to achieve it.
The Mechanics have changed drastically, That Blue swing would resemble a special ability eg: Mortal Strike.