Absolutely. I would even go as far as saying that the idea of Deep Dungeons should be inplimented into some, if not all, existing normal Dungeons.

So that, once you cleared a normal Dungeon the usual way, like Aurum Vale for example, it will spawn after clearing the last Boss alongside the Exit Portal a second menacing looking one which will give you a fixed amount of additional Floors (not randomized in design) similar like in PotD/HoH (like 5 to 20 additional Floors) which will be compareable in Difficulty like Floor 150+ in PotD and also include traps but no pomanders.