1. I don't believe they have given us any pics or movies of a hairjob during Christmas and/or New Year's.
2. These women don't have to do this and are not obligated to do so. If they want to, then that's their choice. But you can't expect them to do it every year around this time.
3. Usually if they post anything they'll do it either sooner or later. I mean they're probably busy enough already during this time with family stuff and/or managing their site.