Players unsure of Australian Open arrangements. Flight options limited. Melbourne airport still closed to international arrivals (many Aussies stranded overseas). Concerns in Victoria about more than 1000 players and coaches arriving from around the world. https://www.thetimes.co.uk/edition/sport/i-hope-for-sake-of-game-australian-open-goes-ahead-says-novak-djokovic-q3nj7kdzv
Hearing there are serious concerns from players about flight options to Australia. Prices quickly going up for the few that are not being cancelled. This just an example of the difficulty in finding a flight to Melbourne at short notice... £16k one-way from London next week!

Most players looking at departing in mid-December to fulfill the quarantine requirements in time for the first tournaments. As it stands, a few more options around then but there are doubts over whether the flights will actually go ahead. Some have been cancelled in recent days.