According to Shawn Slater, Communications Manager, Walt Disney Parks and Resorts Creative Entertainment on the Disney Parks Blog:
When it’s officially reopened on June 15, Disney California Adventure park will feature even more Disney than ever before, with our famous cast of characters making special appearances in delightful new entertainment offerings.
Down on Buena Vista Street, it’s the 1920s and 1930s, and you may run into those young upstarts, Chip ‘n’ Dale, who are looking pretty snazzy in spiffy period outfits. Goofy’s got a plaid suit that’s the “cat’s pajamas,” while a new fella named Mickey Mouse has just arrived in town, hoping to make his dreams come true just like his pal, Walt Disney. He might even join the Red Car News Boys for a song and get discovered in the process.