Follow up packs:
South America Pack 2 - Capybara and Sloth first and foremost, the capybara especially is a very recognizable and iconic South American animal - if SA is revisited again that is the one animal that MUST be in it. I'd round out the last two habitat animals with the Howler Monkey and Maned Wolf. Just missing the cut: Ocelot and Andean (Spectacled) Bear. Not sure on an exhibit animal.
Australia Pack 2 - Grey Kangaroo, Platypus, Common Wombat and Tasmania Devil. Frilled Lizard for exhibit, no question.
Arctic is more difficult - provided we get seal rigs I could say a Harp Seal, Arctic Fox, Musk Ox, Wolverine. I am not including the Moose because I strongly suspect they'll be coming when North America is eventually visited.
Packs for areas heavily represented in the game:
Africa - Meerkats and if they're not included Frontier will hear my sigh of disappointment all the way across two continents and an ocean. Then a white or black Rhino, African Leopard, and a Black Backed or Golden Jackal. I do want Crested Porcupines and Honey Badgers as well, but the other spots have to go to three very noticeably missing animals, and the last has to go to a canine species due to my personal interest in canines. IF we got an Amur Leopard for Asia instead I'd say take out the African Leopard and put in either the porcupine or Honey Badger, I really cannot choose. Or give us 5 habitat and no exhibit animals.
Asia - Small Clawed Otter, Clouded Leopard, Gibbon of some species and either the Amur Leopard (see above) or Yak/Markhor. Indian Cobra for exhibit and there's not even a close runner up. The Cobra NEEDS to be included.
North America - This gets tougher for me as there's so many. We have 4 from the base game and 4 from the arctic, but how to choose. The Mountain Lion and Moose I think will be obvious inclusions. Would really like to get the North American River Otter. And I know of the comments about bears, but having the American Black Bear would be a preference for me. Personally, I'd rather have the Coyote included than the Mountain Lion, but I don't see that happening. Exhibit animal: Alligator Snapping Turtle. And of course, this doesn't even touch on animals like the Big Horn Sheep, American Alligator, Canadian Lynx, Rocky Mountain Goat, Elk, White Tailed Deer, American Badger that I'd love to see, just not as much as the first ones I mentioned.
I'd also like to see some coastal and avian animals but I'm going to shelve those ideas for right now. I think coastal would focus on Walrus, Sea Lion and Seals, hopefully we'd get them through a couple of packs. I'm honestly wanting about 15-20 birds for sure, so if we do get those I hope the packs are bigger than what we've been getting. I won't even touch on fully Marine animals because I have suspicions we won't see those, or at least, not for a while.