I came across this interesting new vacation planner on the Tokyo disney website the other day while roaming around. Apparently it went live on the 18th.
Tokyo Disney Resort: Vacation Maker: User's Guide
This is in English and allows you to see availability of hotels, as well as restaurant reservations and shows within the parks.
We used our DVC points for our upcoming stay at Miracosta, but it was nice to check what shows might be available for the few days we're there.