With Fly Potions and Aerial Combat in Robotech or Rifts, A true 3D environment would be very cool to have access to. I have tried the ISO and it is OK but it gets confusing in combat. I would also suggest an AI-backed system that can convert existing 2D Maps to 3D Ones. Maybe Partnering with Unreal or Unity to do the 3D environment based on tools already in place for both of their gaming engines.