On Dec. 11 a new Walt Disney Treasures DVD titled Disneyland Secrets, Stories & Magic will be released. It's a two disc set, here is official info from Disney:
On July 17, 1955, Walt Disney opened the gates to Disneyland®, the beloved American icon that has become a cherished destination for generations. It was also the day Walt's sixteen-year dream came true. The centerpiece of this volume is a captivating and nostalgic film that takes you inside that dream. Rare archival footage, new interviews with key people and Walt's own words reveal how his innovative vision became a reality. Then discover more Disneyland® secrets with a fun-filled trivia game, and relive the magic of the recently restored PEOPLE AND PLACES: DISNEYLAND U.S.A. presented in CinemaScope with a new 5.1 audio mix. Featuring exclusive introductions by film historian Leonard Maltin, this is a timeless collection from generations past for generations to come.
This has the same title as the 50th Anniversary DVD that was never released, not sure if it contains the same stuff though.