I really hate to burst your bubble but unfortunately development will need to end eventually, and with some information we know what we have 12 DLC's confirmed, which leaves only two on the table, meanwhile we're not sure whether or not it'll be extended past there.
Either way, seeing another leopard subspecies (Clouded Leopard and Snow Leopard not included, completely different species) would take away from such valuable slots. I know you think that it's all virtual, but Frontier is a business after all, and with each DLC goes in a lot of investment of resources, money, etc. An Amur Leopard makes a fine stand-in for an African Leopard, so much to the fact that many zoo's around the world have actually substituted them in their African sections due to the conservation value of Amurs being much greater than Africans, as well as the fact that, well, they look pretty much the same. Plus, if you really want to have the specific African Leopard, I'm sure Nexus has you covered for that.
I think it'd be silly to ask for a subspecies of one that we already have in a DLC - that'd be likewise to asking for the Bornean Clouded Leopard, or the Tien Shan Dhole.
Not to mention there's a lot more "niches" of animals to cover instead of getting another Pantherid. We still don't have Tree Kangaroos, Porcupines, Sloths, any other bird really, and I think that these as represented by the Meta-Wishlist go a long way as to showing that there's still a lot more animals that should be addressed with the limited amount of time that we have left with the game.
I don't understand why they should have a fix date when to end the devellopement or a fix amount of planned content....I mean, there are companies that are still updating their games after a much longer time (SCS Software for example is still updating the ETS2 since it's release 2012....and also with new DLCs)...and if the game makes profit why would a company stop that while it's making profit


