Link to 2008 plans for the hotel and savannah area with lions, antelope, zebra, giraffe and crocodile (presumbaly Nile). A waterhole area for the animals and a large hotel surrounding the main exhibit were also in the pipeline: http://www.pjarchitects.com/project/australia-zoo-hotel/
The current savannah is a downsized version of these plans with rhino, giraffe, zebra and meerkat.
