I can understand it. Every single one of these megadungeons, even Kara, has been half reused content(or content used for something else, like Mechagon Isle) and half new stuff meant solely for the dungeon. That on top of 2 to possibly 3 new zones (and the Dream may even be multiple zones) this expansion.
I just was hoping for some interior stuff to the Bronze area as opposed to floating platforms. The time theme meant reused stuff was going to happen, I just don't like the style of it all that much.