I recon it would have real potential as a dungeon. Just imagine we go to an abandoned Garlean Castrum to try and find like some type of Garlean communication Magitech to hack into the Garlean Military Communication network.

I think some kind of Garlean research facility would make a fantastic Deep Dungeon too. The whole changing layout could be a feature of the facility and the alternate progress could be some kind of Aetheric suppression field where we are forced to use magitech(the dungeons version of weapons and armour) to use our abilities.