Now the pack is out, these are my final thoughts about the animals:
Coyote: Not a very inspiring pick imo. We already had FOUR canids from North America. For me, the coyote doesn't really offer anything new. It is really well made though, and quite common in captivity in North America (even though as an European, I've seen the species just two times). Even though this is by far my least favorite species in the pack I will still rank it 6/10 because of the quality of the model and fur.
Bush dog: Two canids in one pack? At least the bush dog is a very unique one, and it also happens to be one of my personal favorite species IRL. They're cute, kinda weird, they can dive.... what's not to love? I do think the model could have been a tiny bit better, but the bush dog is still a winner for me. 9/10
Rhea: The coyote in reverse. I absolutely love it's inclusion, but not how it looks ingame. I've been wanting a rhea in PZ since forever, since it's so extremely common in zoos and it's a must-have for any South American mixed enclosure. Making a 'pampa enclosure with tapirs, capibaras, antears, llamas and rheas is gonna be a lot of fun. Unfortunately, Frontier kinda messed up the model, which is really disappointing. It's not a Malayan tapir situation as Frontier actually put some effort into the rhea, but it does seem they didn't to all of their research. The rhea could have been a 9/10, but the design flaws takes it down to a 6/10.
American flamingo: Another bird! Yes, storks and pelicans are still lacking, but I welcome any bird from the New World as we really needed them. American flamingos are another very common and iconic zoo animal. It's very much a reskin (but an improvement over the greater flamingo) so I can not give it the full score. I do still like the addition and I think it has been really well executed. 8/10.
Bighorn sheep: Wild caprid number 5, but I don't really mind that. The bighorn is iconic and deserving of a place in the roster. It also has ZT1 nostalgia. I think the design is excellent and a huge improvement over the Dall sheep. My main 'issue' with the bighorn is that it makes the Dall sheep even more of an afterthought and kinda useless now. If we didn't already had another wild sheep from the Americas, the bighorn would be a 9/10 for me. But since the Dall sheep exists, I will rate it 7.5/10.
Ocelot: I love small cats, and I will never get tired of seeing new species in the game. I've been wanting a South American small feline for a long time, either Margay, jaguarundi, Geoffroys cat or ocelot. We have one now! The ocelot will be useful in South-American themed areas, but is also perfect for cat houses. I think the design of the ocelot is really good! 9/10
White-faced saki. Another New World monkey, finally. That already makes it one of the best animals in this pack. Do I like that Frontier chose this species specifically? Yes and no. Yes, because sakis are extremely common zoo animals. Yes because I love their sexual demorphism. No because sakis are extremely arboreal, which doesn't translate well to the game. Capuchins, Squirrel monkeys, even howlers and spider monkeys will occassionaly come to the ground (at least, in zoos) but I don't think I've ever seen a saki walk on the ground like they do in PZ.
Even though I would have personally picked the squirrel monkey, I still love the saki. 9/0
The building pieces don't do much for me this time around. 2/10