Not sure but I think the Porcupines will be apart of the new Waterhole trail, which should open within the next few years, probably following the completion of the elephant complex.
The plan is to create a new breeding complex for the Wild Dogs and Cheetahs in the upcoming waterhole trail, so adding Hyenas into the current Wild Dog exhibit would make a lot of sense imo.
The original plan was to have the Spotted hyena and African wild dog housed adjacent to each other, but this would inhibit breeding of the latter - which breed poorly when housed near hyenas or rival wild dog packs.
Building a complex dedicated to housing a breeding pack of African wild dogs is a much better move given the litter size can number in the teens and it’s become a regional trend for the open range zoos (Dubbo, Monarto etc) to breed and the city zoos hold same sex non breeding packs.
