Looks like this will need to be back on the under the construction part of the board“In ten to 15 years we will cover the entire AED900m investment as well as two planned expansions. We are planning expansion one in 2016 and other will come a few years after that,” he confirmed.
http://www.arabianbusiness.com/abu-dhabi-s-245m-yas-waterworld-plots-expansion-486443.html