I'd like to see a larger round tower as well, with the floorboard leaving an opening for curved stairs going down. Needs an open side in the tower as well to play inside it, this way the tower counts well for interiour as well and can have some beds for the guards in there.
Living space could also be a bit bigger than one steck house. Could have a throne room and two side rooms, one with a bed for the king and queen and the other being a kitchen.
Maybe it would be an idea for all of us to design "new" steck sets as they could appear in stores with the steck and medieval figures we have and post pictures of that?
It might really help Geobra to see such pictures.
Complete with accesoires and everything, and roughly around the budget, not becomeing too big for stores.