SMH Article
Hot off the press, this excellent article from Angus Thompson in today's Sydney Morning Herald.
He interviews former assistant state architect Andrew Andersons who agrees with the previous Hawkridge Feasibility Study concluding a circa.

1,000 seat theatre was possible and casting aside the developer's commissioned report that dismissed the idea saying it was incorrect to conclude the theatre wouldn’t be approved under present standards, saying size of the aisles, spacing of seat rows would all pass, and requirements like sprinklers could be retro-fitted.
Please read, enjoy and share the article to help dispel some of the questions others may have.