Just received this e-mail a bit ago, here is the link
blacks out the Holiday travel from 11/17-11/29. However we are traveling during this period and I checked our fares and although not as low as when I first purchased them but definately lower than they have been when recently checking. Not sure how many SW is an option for, it is pretty much always our best option. So I wasn't sure how many this would help, but I thought I would post anyway.