I had a similar reaction when I saw a video of snappers rig[0] in Unreal 4 a couple of months ago - I don't really play many AAA games these days so I guess I must have missed where the rigs advanced to the point where modelling wrinkles in the face became feasible. Their tech[1] seems to be used in a few AAA games and looks pretty convincing to me.

[0]https://www.youtube.com/watch?v=Vo_FALeUc8c

[1]http://snapperstech.com/