Tassie = Yes for me.
I'd re-badge Gold Coast to be known as The Northern Suns who split their home games between 3 venues at Darwin, Alice Springs and Gold Coast.
GWS rebranded as The Eastern Giants who split their home games 50/50 between Canberra and Sydney.
19 teams - maybe in 2 divisions?
Div 1 - 10 teams with a final 6. Each team plays each other home and away during the 18 game minor round. If you finish bottom 4 and have missed the finals then you're down to Div 2 for the next year. No more tanking from Div 1 teams !
Div 2 - 9 teams with a final 6. Teams 1 & 2 straight through to Div 2 Prelim Finals and also promotion to Div 1 for the next year. Div 2 Elim Finals 3v6 and 4v5. The 2 winners qualify for the Prelim Finals and have also earnt promotion to Div 1 for the next year.
Div 2 Grand Final to be played on the week before the Div 1 Grand Final and would become the night time GF that the tv stations so badly desire. Best and fairest most brilliant player in Div 2 wins the Adam Goodes Medal.
Team #20 whoever that is joins the AFL via Div 2.