So, me and my friend in game, TheKira (Remember this, he did actually help but not a whole whole ton with the idea), thought of another level that could be added to the ? depths (With the Treasure Rooms and Graveyards), it would have the difficulty of a Graveyard (And mostly the same profit of it), maybe a bit harder than a Graveyard, with the Treasure of Treasure Rooms (Treasure should probably be hidden like the secret passages in Graveyards) however, if it is indeed hidden then there should be more Treasure in them. Also, perhaps the Temple could have the Treasure boxes have a higher chance to drop items than normal boxes? And I think there should be some new traps introduced into them, like pitfalls (With some manor to see them with your eyes) and what not.

So, what do you guys think of this idea, any ideas of your own to improve it?