Well, Qantas cancelled the flight I was on 24th over the weekend, which was what I was hoping especially if the borders would not be opening by 24th. Decided to leave it until last minute to accept the refund but looks like QLD is opening the borders to VIC on 25th. Hopped on to the Platinum line (yes checked it was the Platinum line
@PineappleSkip) and they were very happy to help me change the flight cause I said if they could move my flights for me I did not need a refund and if she can points upgrade the flights too if available ... happy days for Qantas....
Anyway, I secured my flights for the same itinerary but one day later leaving Melbourne with no price fare difference. And while I was trying to check a few things, they even put a hold on my seat for the flight and gave me an hour to call back to confirm the booking which was very kind of them.
FYI - Not sure if this applies to everyone, but apparently if Qantas cancels the flights and if you can reschedule travel within 5 days of the original flight date, Qantas will wear the fare difference if there is seats in your fare bucket.