Adieu Bankstown and Camden??
Well .. all the speculation would appear to be over now. Abbott has just announced the decision to go ahead with Badgery's Creek as the site for a second Sydney basin airport(!). It's not clear what's planned for SSY; whether it will continue to operate as a domestic port or at all.
It is projected that it'll take something like ten years to build it so, clearly, there'll be little or no impact on existing operations before then.
However, it also seems clear that both BK and CN ops will be incompatible with Badgery's Creek activity and may well be shut down. The dilemma for BK and CN operators will continue to be whether to start making plans to relocate to somewhere(?), to take the punt that the Badgery's Creek proposition will never come off notwithstanding Abbott's announcement, to begin vigorous and targeted oppositon campaign now or ...?
It seems to me that Williamtown would be a suitable site: there's already an operational 'jet' standard airport there (would need a second runway however) and many ops would be conducted over the adjacent ocean, ala SSY now, the property is quite flat and there are thousands of acres of adjacent land available for acquisition, if neccessary. [The RAAF will need to relocate of course but they're there to take orders, with respect.]
If BK and CN are gojng to survive, lots of people need to get active right now. Else there won't be a GA airport within hours drive from Sydney.