I can't see BNE-ORD anytime soon in the short term. Only chance of that happening, is of course the Queensland Government and the BAC step in by going to QF directly through the BAC and partial taxpayer funded AAIF money to subsidise a BNE-ORD service, perhaps even include BNE-LAX in that subsidy package.
Also to mention BNE hasn't been a 787 base since early 2020, so I can't see that specific route happening anytime soon, nor see QF willing to spend the money shuttling SYD/MEL staff up to BNE (either through a standard domestic rotation or operating a SYD-BNE 787 tag similar to the old QF8 service).