Liz,
I believe what you are referring to which took place on Nov 20th was not an intake, but actually the date on which the ADF phoned potential RAAF/RAN/Army officers swimming in the pool and informed them that they were taking the next steps towards sending them an offer for enlistment; the associated enlistment dates being early in 2013.
From the limited information I've gleaned I think the next call out will be in April 2013.
Hope that helps,
Cheers.