Warning: These maps were not implemented yet in the game, whether korean (?) or american version. They are however in the database, and, using a RH database website, i've been able to find the approx. levels of maps to help me. The map name is the golden one u see sliding when entering the dungeon.
TO VIEW WITH CAUTION UNTIL CONFIRMATION!
Training Room 3
Side note: Balcony 1 being the map of Ramparts, it is likely that Balcony 2 will be also a part of the Requiem dungeons.
The same could be said for the Aquarium maps (eh, we have a theater, a gallery, so why not an aquarium while we're at it?)
For the other two maps, no more info is said until the GMs release any information about it.