I can't see it being moved to Metricon either as the consequences of a multi-million $ compensation claim form the Lions, the AFL, broadcasters, local Gabba businesses and maybe even fans, will be taken into consideration. I think it will go ahead as planned.
The AFLW lets people in for free so there is no foregone ticket revenue and until two weeks ago it was not even confirmed the Lions would host the GF so there would be little pre-planning expenditure from other parties as well.
The AFL draw has been out since October. Tickets are on sale (I bought 9 of them for my family and a mate's family - also all Bombers fans), a home game in Rd 2 v Essendon would be a would just about the biggest crowd the Lions will get all year (there's no guarantee the crowd would be the same in a later round after the bandwagoners fall off for the Lions), broadcasters would have made plans, local businesses would anticipate big crowds on Lions home games and I'm sure some of you have made accommodation bookings.
I imagine the AFL Lawyers would be saying to Stadiums QLD that since October you knew we needed the ground, you went ahead with the Adele concert, if you can't present the ground in a condition that means our booking can go ahead then get your chequebook out.