After so many years it is so obvious to all that Badgery's Creek is the only answer
Then what do you do with the Training area for BK and CN? Might as well shut both of them down as well, majority of traffic at those airports are flight schools. Relocating training areas then becomes to big of a cost to run, forcing relocating into the hunter regions airports or closing the business, which then makes the airports unprofitable as all the hangars and building will be vacant and you destroy all of GA in Sydney.