@Mr Gharial I haven't heard anything about that so far. It will be a while before they will truly need a large exhibit - if they outgrow their current they could still be housed in one of the other exhibits in the reptile house boat.
Knowing Pairi Daiza they will probably one day become part of one of their outlandish projects.
@Mr Gharial Maybe, but they already have so many Asian temples... Perhaps they could adapt some of those to house gharials. Say for example they put a greenhouse roof over the elephant bath thing or something along those lines...
Maybe an adapted version of the pool next to the orang-utangs and the temple, underneath the elephants on the map. (Can't upload a picture of what I mean, sadly)
I haven't visited Pairi Daiza myself so I don't know what it's currently being used for
@Mr Gharial I think that is the elephant bath area I mentioned also. For some time they took the elephants to that area for a bath watched by public on an adjacent grandstand area. But nowadays the elephants bathe in one of the lakes, near the crested macaque exhibit, and more privately. The elephant bath did not seem used last year, apart from as a water lily pond. I hope it will become some kind of exhibit in the future, regardless of inhabitants.