There is, of course, one scenario to consider regarding the Common hippo area:
The zoo deem the Common hippo part of the house, including the outdoor hard standing, redundant, partition it off and use it for storage. The Pygmy hippo side and both indoor on-show pools remain unaffected and operational. Outside, the pools become nothing more than ornamental or used as a rewilding excercise. The zoo then either puts some swanky sheds in the Common hippo paddock, ultimately giving them greater options of what to house there, or nets over the area to create an aviary (similar to the penguin set up)