I think Australian zoos should concentrate on species in the immediate zoogeographical regions, e.g. S.E. Asia, southern Asia and Africa. Also Micronesia (NZ, Fiji, Tonga, Papua, Timor-Komodo)and islands (Madagascar, Galapagos, Seychelles).
Species: dusky langur, douc langur, other endangered langur species of Indonesia, moloch gibbon, bornean grey gibbon, pileated gibbon, babirusa, anoa, banteng, clouded leopard, Philippine crocs, Sunda gavial, rusa deer, Alfred's deer, Bawaen deer, tamaraw. Tuatara, takahe, kiwi, pukeha, (pure-bred) Galapagos and Seychelles giant tortoises, Seychelles fodys, Komodo dragons, more Papuan tree kangaroo species, Madagascar ibis, Madagascar teals, Pyxis tortoise, day geckos, chameleons, gentle lemurs, aye-aye, Malayan sun bear. Sloth bear, Indian rhino, Indian lions, gaur, pure-bred bharasingha, Manipur brow-antlered deer, Kashmir red deer or hangul. African species: klipspringer, dikdik, Somali wild ass, gerenuk, Mhorr or dama gazelle, dorcas gazelle, brown hyaena.