In order to be allowed admittance into a Walt Disney World theme park, guests must not only have valid tickets, but they must also have a park reservation confirmed through the Disney Park Pass System.
The new system has three categories of ticket holders who are able to reserve park days; Theme Park Tickets Guests (Day Guests), Disney Resort Guests, and Annual Passholders. As of Wednesday, there were no dates available for Annual Passholders to enter ALL theme parks until the end of August.
Early Thursday morning, availability was showing for some theme parks through the end of July and for all four parks at the beginning of August. Obviously, the availability is changing by the second, so if you're an Annual Passholder looking for park days in July or August, hurry over to your My Disney Experience account!