I know there are so many different animals from around the world that they still haven't drawn upon for inspiration, and there are also a lot of popular choices that are repeated over and over again, like dolphins, etc. but I hope that one day they draw upon the Australian outback.
There are so many intriguing animals here, and while some Pokémon seem to be a mix of things, like Golduck having platypus elements, I can't help but think of some really cute looking platypus Pokémon being added one day.
Other things like Koalas, Wombats, Wallabies, Cockatoos, etc.
Who knows, maybe they'll include these this time around ... or there will be an Australian themed region one day in the future.