Disney has surprisingly little regard for people trying to make plans. It is seriously frustrating to plan when they can't get schedules out in an adequate amount of time. One of the perks of staying onsite is being able to make dining reservations at 180 days, but that is nearly impossible when you don't know what's going on in the parks.
I feel your pain! I am holding out right now on the dates for November Early Morning Magic. Like you, I am getting a little panicked. The airline changed our flight time, and I can't accept the chnage until I know if EMM will be offered that day (Sunday after Thanksgiving. It was offered then last year). If it is offered, we will need to change to a later flight. If not, we want the earlier flight that we're on now. Obviously I can't hold out too much longer as the later flight I would need to move us to is already very full. Part of my morning routine is checking Disney's site for November EMM and then checking the airline for availability on the later flight.