If PCA was turned into a Madagascar/Indian Ocean complex of habitats to complement the Australian zone that CMZ has, complete with a highly accurate recreation of a spiny forest, deciduous open gallery forest and rainforest (along with maintaining a nocturnal section for aye-ayes, fossa, tenrecs, etc.) *for Madagascar*, and as for an Indian Ocean environment, maybe some exhibits replicating reefs, open ocean, etc. leading to Papua, New Guinea (incorporating the deckwalk and eventually the Australian zone of the zoo as well) I can see a legitimately bright future that honors the ambition that PCA originally had and maintains that idea through a new message of biodiversity.
I could see a real possibility for that, but I would also think that would be a major investment to get off the ground right. I do love the idea of using the existing hill and forest as something that's more informative than activity based but there's no reason you can't do both in this sense. I also like the idea of having some Indian Ocean/India/keep the Madagascar exhibits. A lot of potential in that if they want the PCA or see a future for it. One major element that will continue to hurt it is that it's just disconnected from the rest of the zoo.

