Hey mate,
RAAF, RAN and ARA offers went out on the 20th so if you didn't recieved a call you've missed out this time. From what I remember being told when I was on flight screening, the next intake is in April (though you probably have a more up to date time). When the offers went out there was approx 70 candidates in the pool for RAAF and 15 offers were given out. Not sure about the size of the RAAF/RAN pools.
Best of luck,
Steve