This is a new guest perk and is permanent. The E-ticket nights is being phased out. Please beware, even though there seems to be a "set schedule" for the AM and PM for each park, there does seem to be alot of floating of park days. So don't try to make your PS for the "set schedule" until you find out the actual calendar for the month you are traveling. WDWinfo.com has done a great job at keeping us updated so far and hope they will be able to continue this service. (I found out about the changes because I thought the schedule was set until I visited the CM website and looked at the calendar and saw the days were all switched for the week of Jan. 15th, then saw that February had some switched days too. Of course, I had to redo all of my evening PSs and have my fingers crossed that it won't change again.)