Perhaps since the folks down south are getting hammered with winter weather, and I trust that most of us have had a holiday break (assuming that HTC also would have given their staff some extra quality time with their loved ones), the question in the subject bar is totally up to them to answer.
I would like to see them change at least weekly, but whatever the answer, it is not the end all for me, either way. Although I am "bothered" by the long run of a single map, I feel I have enough choices to jump around to and from, time to time. I like stopping in to visit the trainers in the TA and ask my noobie questions. I experiment with different dogfight / furball tactics in the DA. Time actually flies by whenever involved in Special Events or AvA participation. Sometimes, I have so much fun elsewhere, I feel guilty for not popping in the MA just to say hello to my friends and squadees.