Miombo woodland might be a good idea? You can have these species for this theme:
- African Bush Elephant
- Masai Giraffe
- Eastern Black Rhino
- Sable Antelope
- Greater Kudu
- Kirk's dik-dik
- Impala
- African Lion
- African Leopard (if available)
- African Wild Dog
- Bateleur
Another idea might be the Nile River Valley, where you can have these species:
- River Hippo
- Nile Crocodile
- Spotted-necked Otter
- Olive Baboon
- Nile Lechwe
- Sitatunga
- Waterbuck
- Saddle-bill Stork
- Shoebill (insufficient in captivity, but just a fantasy)
- Lesser Flamingo
- Grey-crowned Crane
- Egyptian Goose
- African Pygmy Goose
- Pink-backed Pelican
- African Spoonbill
- Sacred Ibis
- some other waterbirds or waders
Madagascar is a very common African theme, and many Zoo's Madagascar exhibits cover not only Madagascar but also other African Islands like Seychelles and Rodrigues Islands.
Could that be a good idea that has a section focusing on just a particular part of Madagascar? Like the Masoala Rainforest of Zurich Zoo. The challenge is, many Madagascar species only distribute in certain regions so you have to get rid of many species if you choose only one region as theme. For example,
Andranofasika Dry Forest:
- Coquerel's Sifaka
- Common Brown Lemur
- Mongoose Lemur
- Fossa
Plus a pavilion that displays Tailless Tenrec, Western Fat-tailed Dwarf Lemur, Grey Mouse Lemur, Crested Cuoas, Madagascar Crested Ibis, Hamerkop, Grey-headed Lovebird, Greater Vasa Parrot, Madagascar Bighead Turtle, Flat-backed Spider Tortoise, Madagascar Tree and Ground Boas, what else? Wait, a Madagascar theme without Ring-tailed Lemur, could visitors other than zoochatters feel weird?
Canids have historically been pretty poorly represented in zoos compared to felids. Even today many zoos have at least a few species of large cat. Few have more than one large dog.
Like Toronto Zoo, which has only one Canid species now (Arctic Wolf), so sad that they are not able to maintain Dholes and Arctic Foxes.