Hi Brad!
Thank you for visiting the Moms Panel!
Any changes to the Disney Dining Plan would not be expected to show up until later in the year, so I would check the details around November or December 2012, for next year's updates.
There is a 24-hour cancellation policy for most restaurants, but with your reservations not being until June 2013, you will have plenty of time to change your plans, and cancel any dining reservations without penalty. Dining reservations can be made
online, or by calling (407) 939 3463, up to 180 days ahead of time.
Details of the Disney Dining Plan can be found
here.
If you have any other questions, please come back and ask me - I would be happy to help you plan your magical vacation!