I just wanted to check in real fast to see if you saw olavrb's reply and to find out if you still needed any help on this. If you're still needing assistance, please just let me know and I'll be happy to continue helping. For now, the best place to watch for updates on release dates are the Google social media accounts, here on the forums, and the community blog.
We appreciate your interest in purchasing our newest product, Nest Wifi Pro. We don’t have news about its release date in Australia. Keep an eye on the Google Nest Community page and our social media channels for any updates.