I'd renew by DEC 4. There are many things we don't know. But I think we can be certain that there will be less ATO's (Flight Examiners) after Dec 4 and that renewals will cost more. I think its also likely that there will be a period of uncertainty will the many ambiguous parts of the new legislation are worked out.
Ahhh god damn it. There is no way ill be able to get my leave changed now...
Even casa can't give me a straight answer and they are the legislators!