Deep down I still hope that the pack might be good, or at least have something interesting (other than the Markhor which, to me, is perfect). Pallas' Cat is a nice surprise, and while I don't care about primates Hamadryas is a good pick.
However, the problem isn't what's in the pack (it is actually, but more on that later), the problem is: what ISN'T in the pack.
Tree Kangaroo, Echidna, Walrus, Secretary, Dik-Dik, basically all the animals I wanted will never show up in a mountain pack (MAYBE, huge emphasis on MAYBE, the tree kangaroo). So, to me, this pack already feels like a waste, because 4 out of 7 slots will be occupied by unnecessary clones and "filler animals" like, for example, spectacled bear or guanaco or yak. Animals that we already have, although in a slightly different colour (llama, highland cow, and don't get me started on the bears.)
As for the "this isn't the final pack"... Why wouldn't it be?
It's pretty clear that this is the final DLC. It's taken months to complete and it's not even released yet... I don't think Frontier will spend 6 more months working on a new Planet Zoo DLC, especially considering how PC2 is right around the corner.
We should simply give up on these stupid illusions and face reality as it is.