Can see why start delayed until December for season 2020/2021, to create semblance of an off season this year.
But beyond that only see more cons, than pros switching to a winter comp. Esp for the Nix
Don't really understand why Fox (or any future broadcaster) would be keen.
Apart from cricket, basketball and a month of tennis, summer in Australia is a bit short of sporting 'product' to broadcast. But in the winter you have the other 3 big football codes, all competing for eyeballs.
Seems like the ambition is almost a back to the future semi-pro NSL setup.