I believe there will be a total of 9 DLC packs to cover all bases and based on remaining information this is what I would do for the remaining 6 packs
1. North America pack - Moose, Wolverine, American Beaver, Florida Panther and Alligator Snapping Turtle for an exhibit animal. I strongly believe we need a larger variety of exhibit animals
2. Asia Pack - Sun Bear, Binturong, Pere David's Deer, Mongolian Wild Horse and King Cobra for an exhibit animal. I really want the cobra and the horse
3. Africa Pack - Black Rhinoceros, Caracal, Meerkat, African Crested Porcupine and the Veiled Chameleon for an exhibit animal.
4.Ornithology Pack - Would include 4 habitat birds; Rockhopper Penguin, Trumpeter Swan, Emu and Marabou Stork and introduce the Aviary mini-exhibit with 10 available birds; Kookaburra, Bald Eagle, Snowy Owl, Scarlet Macaw, Greater Bird-of-Paradise, Rhinoceros Hornbill, Sulphur Crested Cockatoo, Toco Toucan, Barn Owl, Common Raven
5. Marine Biology Pack - Would include 4 semi-aquatic habitat animals; Grey Seal, California Sea Lion, Giant Otter and King Penguin. It would also introduce the aquarium mini exhibit with 10 available animals; Ocellaris Clownfish, Blue Tang, Red Bellied Piranha, Electric Eel, Common Octopus, Japanese Spider Crab, Boesmani's Rainbowfish, Volitan's Lionfish, Emperor Angelfish
6. Biodiversity Pack - The final pack would tie up loose ends and fill up any missing spots with around 10 habitat animals; Musk Ox, American Alligator, White Rhinoceros, White-Handed Gibbon, Clouded Leopard, Fennec Fox, Capybara, Addax, Two-Toed Sloth and Tasmanian Devil
In addition 10 new animals for each mini exhibt type
Terrarium - Orchid Mantis, Coconut Crab, Hercule's Beetle, Frilled Lizard, Tokay Gecko, Tuatara, Red-Eared Slider, Cane Toad, Hellbender and Indigo Snake
Aviary - Rainbow Bee-Eater, New Zealand Kiwi, Turtle Dove, Golden Pheasant, California Condor, Eurasian Black Vulture, Red-Tailed Hawk, Scarlet Ibis, Hyacinth Macaw, African Crowned Crane
Aquarium - Leafy Sea Dragon, Yellow Perch, Moon Jellyfish, Schooling Bannerfish, Koi, Epaulette Shark, Green Moray Eel, Panther Grouper, Porcupine Pufferfish, Midas Chichlid