According to a couple of game reviews I read Arthur has hinted that LDW will add more puzzles to the game by way of updates in future (no time scale given!). When you first visit an undeveloped room a hint pops up that says something to the effect that the peeps can pay to have the room renovated, or might be able to repair it some other way. That looks very much like a 'hook' on which to hang a future puzzle. I wonder if 'smelling the room' is another?