Just know that even when they do announce them they could change! We are going last week of April and when I made a priority seating for Wednesday the 27th at Liberty Tree, the CM told me that she had the park hours as being open until midnight for EMH that night. It didn't have that date listed yet on their EMH section of the website however. You make your ps' 90 days out having no idea what the hours are going to be much less EMH schedule. Like my tag says, Disney's purpose in life is to drive us all crazy!