@jcgatennismom, the current situation in Victoria has been hard earned after several weeks of Restrictions - I hesitate to use the word "Lockdown" - We have been free to move about for important reasons without any hindrance. We have an overnight stay home curfew in place for a few weeks but we could still leave home for a few important reasons. Most schools moved to Online Learning for a few months which some found difficult and which some thrived in. All kids are back at school now.
The latest news out of Tennis Australia - supported by local Governments. The Australian Open is scheduled to go ahead in late January. Many top players including Federer, Serena and Novak have already confirmed they plan to come and play. At this stage there will be limited numbers of the general public permitted to attend the event and tickets will be going on sale shortly.
International visitors are being permitted to enter Australia at this time. They must spend 14 Days in some form of controlled quarantine. Tennis players arriving for the AO will be subject to those conditions also. The current plan is for most players to arrive in mid December ... spend 14 days in Quarantine ... and then operate in a Hub / Bubble arrangement through January. At this stage, the plan is to run the ATP Cup for Men in early January as a lead in to the AO. There will be a WTA Tournament for the women over the same period. Both events are likely to be held at Melbourne Park in a Hub style arrangement. Tennis Australia is planning to announce the full details in the next few weeks.
In the meantime, all Junior National Championship events conducted in December (known here as the December Showdown) have been cancelled for 2020. And I do not believe there is any plans to conduct a Junior Australian Open in 2021 or any of the associated lead in events.
(Just FYI, Australia has been receiving incoming International Flights for most of this year in order to allow Australian Citizens, Permanent Residents and permitted International visitors - including people like Tom Hanks, Zac Efron, etc! - to enter the country. All have had to complete 14 Day Quarantine.)
As for UTR and WTN. Tennis Australia has announced a commitment of sorts to UTR. But if WTN takes off, being ITF based, I imagine TA might shift across to that, or permit both / either systems to be used.
I'm not fussed either way. Both UTR and WTN are superior systems for determining Player Rankings compared to the current extremely biased Australian Rankings System.
(Personally, I think the WTN System of Ranking better players with lower numbers makes more sense as it is more consistent with Seeding numbers and the traditional Player Ranking Numbers.)
TA is currently staging a local UTR Pro Series Event at Melbourne Park as we speak. You can view the current match stream on youtube.com. Weather is quite nice here this morning. (At 11am it is about 22 Degrees C, nice and sunny with a light breeze.)