Coyote.

Finally another dog. I'm ecstatic. This right here makes this pack an instant buy for me. In regard to the fact that it could be a South American fox-like canid like a culpeo, chilla, or pampas fox, I'd be equally thrilled with those as well, but highly doubt Frontier would pick animals as obscure as the South American fox-like canids. The only South American canids that are semi-well-known worldwide are the Maned Wolf and Bush Dog. The Maned Wolf we already got and I would be extremely happy if we got the bush dog in this pack as well but I could see how 2 canids in one pack wouldn't go over-well with some other players.
All I'm hoping is that the coyote has it's goosebump-inducing yips and screams. Would be a thrill to hear
Source: https://youtu.be/tvTJs1RBg4w?si=sKVcbLdx_94htndD
I hear these everytime I go up the country
Yes please. I will be so mad if they just re-use the wolf howls. Although considering the donkey still neighs like a horse, things aren't looking good for the coyote's unique vocalizations. :/ Does the Nubian Wild Ass also neigh? I can't remember.
As for the other animals in the pack, here are my thoughts:
Saki Monkey- I didn't see the monkey in that other flag until people pointed out the shape with photos and I realized it was a monkey on a tree with branches. I thought the branches were arms of some animal and was confused. That being said, I'm kind of bummed the monkey they went with was a saki. I would've preferred a tiny monkey like a golden lion tamarin or common marmoset or really almost any species of tamarin or the pygmy marmoset. If it still had to be a medium-sized monkey, then a species of Howler monkey such as a Black Howler, Brown Howler, or any of the Red Howler species (Guyanan, Purus, Bolivian, or Columbian Red Howlers) would've been my preferred monkey. It's still nice that we finally got a New World Monkey though, even if it wasn't in my top personal picks for a NWM.
Rhea- This is a good pick. I'm happy for the bird people and they are funny birds plus it finally finishes the ratites out.
American Flamingo- The brighter pink/red color for flamingoes is nice but I still would've preferred a Scarlet Ibis or a Roseate Spoonbill to them. I would especially want
a Scarlet Ibis because there doesn't even exist any mod for them and while I think it would be cool to have them, I don't want them enough that I'm willing to put out money for a commission. I don't really think the Ibis or Spoonbill would be a problem flight-wise because I've mostly seen them just chilling in the water in the bird houses at the zoos I've been to and also cranes and swans fly but we still have them in game. If Frontier was determined to still go clone-y for a bird, the duck was also right there over a flamingo. Just take the swan, alter the neck to be shorter, recolor the skin, and then bam, duck. Mallard Duck, Muscovy Duck, and Black-bellied Whistling duck would've been some good choices.
Bighorn Sheep- Just why? I get that they're iconic here in North America but we really didn't need yet another sheep in a row. We have much less deer in the game than sheep. I would've rather the ungulate slot going to a deer like the tiny Pudu, any species of the small/medium brocket deer, or the Marsh Deer from South America and/or Central America or White-tailed Deer, Mule Deer, Sitka Deer, or Elk from North America.
Other Potential Additions:
Coati-I will be very sad if a Coati is not one of the 2 unannounced animals. Having both a canid and a coati will make this the best pack ever and the first pack I've been super excited about since Grasslands. My favorite is the White-Nosed Coati but I'd be equally happy with the South American Coati everyone else seems to want as well. Or really any species of Coati at all would make me happy.
Kinkajou- Not a popular pick. Kind of an oddball but they're adorable and I love them. However, having both Kinkajou and Coati in the same pack would make 2 raccoon
family members in the same pack. To be fair though, kinkajou are not really raccoon-like in appearance or behavior. They're kind of primate-like even though they aren't primates. I personally would love it if both the coati and the kinkajou were in the pack but find it unlikely. If had to choose between them, I prefer the Coati.
Bush Dog- Similair to above, I don't really see them putting 2 animals from the same family in one DLC, but the Bush Dog is a unique and weird little canid that looks more like a stuffed teddy bear than a dog and also one of the few semi-aquatic canids. I would be thrilled to get a Bush Dog as well but not at the expense of losing the Coati if there's only one more carnivore spot left.
Tayra- Cool big weasel which I really like but I'd still prefer the Coati and/or Bush Dog to them.
Ocelot- Although I want them eventually, I don't really want them to take up a spot in this expansion when there's more unique carnivores like Coati, Kinkajou, and Bush Dog that could be included.
American Black Bear- Same as above. I want them eventually, but I don't want them to take up a spot in this pack that could be used for more unique animals. I think they'd make a good anniversary gift animal though.
Sea Otters and/or North American River Otters- These would be adorable, but I have a feeling they would've been the head-liner if they were in this pack. Besides if we got some sort of Coastal Pack as our pack after this one, they could come in that pack.
Bobcat- I like them but not enough for them to take a slot from something else.
Black-footed Ferret- I would love these but they're more North America than South America and I want them to lean more towards South American or animals that can be found in both North and South America for the final 2 picks.
Patagonian Mara- Ok, these would be wonderful for a non-carnivora pick. They're rodents but they look like kangaroo-rabbit hybrids. Such beautiful weirdness.
Virginia Opossum- Another good non-carnivora pick. Finally more marsupials! It's North America's only native marsupial as well. Alternatively, they could add any South American Opossum species instead but those aren't as well-known.
Tamarin Species- Please if there's a second primate, make it a tiny tamarin species. I like golden lion tamarin or golden-headed lion tamarin best but I will take literally any species of tamarin.
Marmoset Species- Don't like them quite as much as tamarins but they are still tiny and cute monkeys I'd be happy with.
keep

the

dogs

coming
Don’t end support until we have raccoon dog, bush dog, gray fox, bat-eared fox, black-backed jackal, and red wolf. Just those 6 would unironically be a divine pack in my eyes.
Same except I'm mostly foxed-out except for the South American fox-like canids so don't particularly want the bat-eared fox or gray fox that much and prefer the golden jackal to the black-backed but would still gladly take the black-backed jackal as well. My list would be almost the same except I'd replace Bat-eared Fox with Ethiopian Wolf and Gray Fox with Golden Jackal.