I just came across some great new concept art of the resort:
This design is very different from the earlier concept art that had a more "classic" Atlantis aesthetic. Of course this concept art is not necessarily the final design either. Note that the large waterpark is closer to the street and the resort tower itself is right along the beach. In the first new concept art the beige/tan colored buildings in the back are Aulani, A Disney Resort & Spa so the two resorts will be right against each other.
Facts about the $1.8 billion Atlantis Ko Olina
- Five star luxury resort with 1400 guest rooms
- 1,000,000 gallon aquarium + snorkel lagoon
- Aquaventure Waterpark to feature waterslides, lazy river and wave pool
- Thirteen signature restaurants
Sources: http://www.fhkg.com/index.php/Ch/Cms/Industrial/jdgl_xqy/id/67 and https://www.slideshare.net/slideshow/embed_code/key/sMiH2RVubJF0w1