Well, rather than let it burn down they're going to get rid of this themselves, with Dreamworld gaining permission to demolish the amphitheatre used for eviction shows and surrounding buildings.
https://tvtonight.com.au/2019/08/and-now-the-big-brother-amphitheatre-is-being-demolished.html
https://tvtonight.com.au/2019/08/and-now-the-big-brother-amphitheatre-is-being-demolished.html