A model of Tiana's Bayou Adventure and the Walt the Dreamer statue are on display at the sold-out expo.
Existing passholders can renew, but new sales are still suspended.
Disney CEO Bob Chapek said recent theme park successes reflect more than just "pent-up demand."
The Anaheim City Council will consider a 2% tax on admissions to venues with capacity of 15,000+, which includes Disneyland's two theme parks.
The revamp will open at both Disneyland and Disney World.
Chapek's new deal starts July 1 and runs through 2025.
Both Disneyland and Disney World have been covered by no-fly zones since 2003.