When Lobby 3 came out, you used to be able to go in the store and it looked, design wise, complete. The upgrades are the things when you go the the Games section of the Appearance menu. Alongside the milestone items we have now, it will have things like Ball Race materials and shapes like shown in this Dev Log or Minigolf trails like shown in this Dev Log. If it was scrapped I think it would’ve been moved out of “Next Up In Development” in the Trello, as they’re pretty good at keeping it organized.