Just an FYI.....we went last January....and the codes didn't come out until October.
I'll guess that would be about right for this year as well....all the current offers I'm seeing must be booked by September 27......for stays through late December. So they'll finish up with these and then a week or so later they'll start with the codes for January/February. I can't remember if they included March as that wasn't part of our trip so I blocked it all out.
For what it's worth....the codes for Jan/Feb weren't all that great so we ended up staying off site and had a lot more space and a lower price than even a value!