I believe so. It has been stated that having things like inventories etc for RPGs is something that will be coming, together with fbx support for animations - which will open up the possibilities to do both.
That's what I would like to know. They will keep BB3D simple, just for mobile games, or it will also be for some bigger, more serious indie games, such as Bendy and the ink machine, or Superhot, etc. Basicly, is Buildbox in the near future going to be more suitable for PC games, or will it stay in the engine just for mobile games?