Talking...
Yes talks are in the progress about shutting down cooranbog but as far as i know the talks do not involve the local council (LMCC).
It is the church (Seventh Day Adventist) whom owns the aerodrome and are talking to sell / close the aerodrome due to financial difficulties (as Avondale College, Avondale College School of Aviation, Corranbong Aerodrome and the Seventh Day Adventist are all related).
This is my knowledge if anyone knows any better or anything new let me and us know.