How would a Secretary bird fit into a treetops pack?
Also for your 4th point, a Highlands Animal Pack would fit that rubric. 1-2 community animals would be Wolverine and Baboon, 1-2 rig reusers would be Spectacled Bear and the Markhor, Oddball would be the marmot, and the educational animal would be a toss up.
They roost on treetops and build nests ontop of trees, it's a stretch but i don't think it is impossible.
It would fit the 4th point, but I don't think it would be as profitable as other potential packs or appeal to a wider range of people, I see it more popular with the zoo and animal fan demographic (which is most of us on this forum), not as much the other two. When they have pack options with other cuter animals that have a higher likelihood to score well with all of their target demos that's going to be their preferred pack choice. I think Oceania pack is actually a really good example of what they are aiming for - two highly requested community animals, some popular cutesy Meme and pop culture prominent animals for kids and general gamers, and an interesting lesser known animal that is still cute and generates conversation. All of the animals are interesting and unique, and are each able to hold attraction and sway in terms of marketing the DLC to a larger group of people, so that frontier can make more sales. I think feedback for say, the arid pack was flat across the board from most of their customers - i would be interested in seeing the salefigures - and they are trying to swing away from it. I think a Highlands pack while it would go down well with us here, probably wouldn't generate as many sales with everyone else that Frontier targets sales from.
Breaking it down, here are my sales/marketing thoughts on animals I see most put in the Highlands pack on the forums (and I'm doing more than 8 because I'm looking animals I see alot). Personally I like all of these animals and would like to see them.
Wolverine - I do think this guy will show up in a pack, he's unique, cute, and important. Popular enough in pop culture, (Logan, common sports mascot, coat of arms, nature docos)
Baboon - I really want to see one but I am not sure we will, there was backlash over the proboscis and I think if Frontier is going to put another primate in a pack it's going to be a smaller new world monkey that looks less scary and more cute for kids and general players - people have been complaining about primates in other places, I think Frontier will be wary of them.
Golden snub nosed monkey - I think this is the more likely pick than the baboon, and it was in the golden compass which makes it sort of familiar to kids/young adults. It is more marketable in my opinion. But that also depends on if Frontier wants to add another monkey in the game. It's been what? Nearly 3 years?
Spectacled bear - I think it really just depends on what other packs Frontier has planned out. If we see a sa or others feasible pack I think the bear is more likely to be In one of those. 50/50 shot tbh.
Ethiopian wolf - I think unlikely, but still could be in there for a few reasons; zt2 nostalgia, cute canid, endangered - I think it's one of the oddballs.
Alpine marmot - I see a high probability for this animal showing up. Remember the Steve? Steven? Alan? Meme? Yeah.
Rocky mountain elk - people have been asking for an elk, and it's familiar with a large player base (usa - yes I know that people from other places play the game too but let's acknowledge that USA is a large portion of the games players) familiarity usually equals likeability statistically, and I think this is well know enough that it could make it into the pack.
Rock hyrax - I love them but I just don't think they are showing up, especially competing against the marmot and the marten. Why
Yellow throated tree marten - I do think this one has a chance of being in the game - cute, personable, and beautiful colouring. However - I think an arboreal or forests pack is more likely to have this animal.
Takin, markhor, yak, musk ox, Barbary sheep - yeah I lumped these guys together. I think we have a chance to see two in a mountain pack - likely the takin (beautiful, interesting, big fluffy guy to appeal to lots of people) and the markhor - Highlands/mountains pack wouldn't make sense without a goat. personally would like to see them all, and I think it's feasible to see the musk ox in the game it would likely be in a different cold climate pack. There is so many direction Frontier could go.
Pallas cat - fairly high chance of seeing this one, meme animal, relatively well known, easy to keep costs down producing it by reusing the sandcat rig.
Tanuki - I really wish we would see it, and I think there is a low chance that it will make it especially when we consider the cultural significance it holds and it's pop culture presence (animal crossing, Mario, studio Ghibli, zootopia) However I think it is not out of the question that Frontier would make a "Asia" pack (SE asia has had attention, Asia is the only major region without an actual pack now isn't it?! We have arctic, Africa, South America, north America, southeast Asia, Australia/Oceania, Europe... Where is Asia ? Actually, we could see an animal pack of wolverine, tanuki, golden snub nosed monkey, pheasant, yak, Chinese giant salamander, and takin. It's the big place that's missing from the DLC line up, it's part of the reason I am not sold on Highlands when Asia is Right There with so many of the Highlands animals)
Snowshoe hare, mountain hare - This would be the very cute animal for kids and families and make us happy with a Lagomorph, finally. Could realistically see it's inclusion
Chinese giant salamander - odd ball, but complementary to the axolotl, fire salamander, terrapin, I don't think it's guaranteed but it's not unlikely either.
Golden pheasant, rhea - of these two, I think the pheasant is more likely. The rhea would make more sense in a sa pack from a marketing pov in my opinion as I think it is just more commonly associated with SA than Highlands.
Tdlr; Asia as a pack makes more sense than Highlands and we would see alot of the requested Highlands in such a pack.