Confirmed dates are as follows:
Disney's Animal Kingdom: Tuesday January 21, Tuesday February 11 and Tuesday February 25, 2020. Booking for those with hotel reservations begins Wednesday November 20, 2019; others can register Wednesday December 4.
Magic Kingdom: Tuesday March 3, Tuesday April 21 and Tuesday April 28, 2020. Booking for those with hotel reservations begins Wednesday January 8; others can register Wednesday January 15.
Epcot: Monday May 4 and Monday June 29, 2020. Booking for those with hotel reservations begins Wednesday March 11; others can register Wednesday March 18.
Disney's Typhoon Lagoon: Monday July 27 and Monday August 10, 2020. Booking for those with hotel reservations begins Wednesday June 17; others can register Wednesday June 24.
Disney's Hollywood Studios: Tuesday September 15, Tuesday September 22 and Tuesday October 6, 2020. Booking for those with hotel reservations begins Wednesday July 15; others can register Wednesday July 22.