The Final Fantasy XIV site has a new mini preview of a new location coming with update 4.05 on Tuesday next Tuesday. The blog is packed with images from The Lost Canals of Uznair that "is the same as Aquapolis" but features new, fresh enemies to face off against. According to the blog, the team has plans to further upgrade this location over time.
Entering players will find a chest sitting in the middle of the floor and a new, unusual looking doorway. Once the puzzle is figured out, it opens to a long hallway, something similar to sewers, though cleaner looking. Along the way down, players will face off against various enemies, ultimately leading to the bottom floor that is a gold plated delight.
Check it out on the Final Fantasy XIV site.