They always do an announcement for the beginning of the Halloween release, but as I recall, it's usually only the day of Halloween itself, starting U.S. east coast time at midnight. Best bet is not to pick up any eggs for 5 days before Halloween, just to be on the safe side. Remember that Halloween is the one holiday where you can get a full 7 eggs (from that year or previous years), and that all Halloween eggs are breedable for usually up to about a week or two after Halloween as well.
He generally announces the breeding times far enough in advance for us to prepare, though.
Oh, I wonder if he's going to clear out the AP so that the Halloween eggs show, even though they won't have the low hatching times that the current eggs generally do. Guess we'll find out.


