The only situation where I can see further regional facilities acquiring Pygmy Hippos, is if sufficient surplus is generated regionally. At the moment, it isn't looking like this will be the case with the current population in mind.
Common Hippos would be a far better bet - some of the smaller, regional facilities could manage to get their hands on surplus bulls/cows if breeding takes off at Werribee, and consequently Monarto/Dubbo. But I would surprised to see them being specifically bred for that - it might end up being a case of one of the main facilities needs to offload a few individuals or so, rather than want.
I guess the thing with the Common hippopotamus population is that it will be a slow expansion. It could be another year or two before Werribee have a calf on the ground, with no guarantee of a male. The first bull calves would then go to Monarto/Dubbo, with breeding introductions taking place once the bull calf is five years of age.
For Dubbo, the surplus could well be the two cows from the mother/daughter trio who don’t breed. After the breeding cow has produced a couple of calves, there could be the need to free up space. Ditto for Werribee, even with three exhibits.









