Princess Tiana does meet and greets in the gazebo behind the Christmas store in MK. She also has been doing a show on the Riverboat there but I'm not sure how long they are continuing that. I haven't seen anythign Wall-e in the parks. Little Einsteins do meet and greets in DHS and they are a part of the Playhouse Disney Show there. I haven't seen Imagination movers stuff, but I wasn't really looking so that doesn't mean much LOL.