They don't give us mere peasants that information (unless we happen to be in recurrent and ask around). If you've interviewed or been accepted recently your best bet would be to call in and ask.

The last time I was in training department they said that they're having a little bit of trouble completely filling classes and there have been a few open seats in most of them recently. It's probably a safe bet that there are a couple of open seats in the Jan 27th class.