Apple School Manager for Australia

Why are you asking this here? Contact Apple Australia for this, they would be the ones to let you know the best, I'm sure they have some EDU teams down there.

I wonder the same for the US, I'll connect with my Apple Rep

While creating account on Apple School Manager it ends up in error, page you are trying to access is not available. This is happening when we press Submit button. Its also not showing any country other than US, however, all Australian states are in the city list, weird. Or local store has suggested that this program will be available in near future which might be August 2016 when school year starts in US. They are getting someone to look into why the registration is ending up in error.

No, Apple will open this up for everyone in April to test (source: Apple Education Team via e-mail)