I'll just agree with Ragnor's statement, pretty clear and sensible.
Problem I have is that the states who chose "isolation" believe they have been a success and may not have the protocols established to deal with any outbreaks, when they DO open their fallback position (if South Australia's any indication) is simply to close down - yet again.
Like many one of my parents died (at 93) due a chest infection/cold/flu that became entrenched and led to the body organs saying "yeah all too much".
We haven't eradicated the common cold - yet there appear to be people/organisations who delusionally think CV19 can be eradicated.
My apology in these PC times but my comment stands - morons.
If nothing else simply demonstrates this is still early days of seeing how different approaches do/do not work socially and economically both in Australia and the globalised, interconnected world.
Anyone who believes the first half of 2021 will be any better - good luck on that, I honestly hope you're right.