Not sure what the incentive should be, although this one would be good, all the clubs in Melbourne could agree to this and everyone gets to go to an away game for free and all clubs get a way to keep their members. My membership covers away games in Melbourne so wouldn't affect me, maybe a decent reserved seat for no cost at an away game would be nice.
I really wonder whether they will do general admission in 2022. The AFL certainly seems to want to make it reserved for every seat forever more. I hope they don't succeed, general admission is a bedrock of the game and should be kept.
My line of thinking is that supporters would get to a game of their choosing. not one dedicated game. I would personally choose a game interstate.