This morning, the Disneyland Resort once again updated their COVID-19 related travel information page and is now only accepting hotel reservations for July 15, 2020 or later. This applies to new reservations, as well as guests that are modifying existing reservations.
Previously, guests could book vacations for stays starting July 1st.
For guests with existing existing reservations for arrivals through July 15th, Disneyland is waiving all change and cancellations fees.