If this really happens I hope they will not "ALL" leave Dallas at 06:00 AM on Tuesday and require a return on Thursday at 11:30 PM, much like Continental has done.
I actually like the morning flights out of Houston on Continental. I fly the redeye out of vegas which leaves at 1am and gets in at 6am, then catch the 9am to Belize. Gets me to the island by noonish, just in time for lunch at waruguma's. And my impromptu trip in may is only $400 round trip... best rate I've had from vegas yet.