Other organisations have purchased land in the Seaford area for the future. This includes Scouting who have a large block of undeveloped land on Commercial Rd near Moana Heights. They have been sitting on this land for ages.
I believe the Seaford Meadows development plan does detail another fire station, primary school, shops, etc. But with SAFECOM now trying to control physical assets, it could be for a bigger & better CFS station.