I think this is the only way we actually get to see villains that aren’t named Maleficent, the Evil Queen, Ursula, Captain Hook, Hades, Jafar, or Scar. I still expect the main attraction to heavily feature and emphasize these characters, but with 3D screens, we can work in a hell of a lot more in the background or in additional, momentary appearances (cheaper to animate a CGI character than build a bespoke animatronic).