If you mean "closures" as in when the rides closed, there were some rides that had alternate schedules on the 24-hour day. For example, last year, Space Mountain was open from 6:00 am to 3:00 am and RSR operated from 8:00 am until 4:00 am. My guess is that some rides will have reduced operating hours again this year, but we might not know which ones (and their schedule) until the day of the event. If you are going, it's worth getting the Times Guide for both parks as early as possible so you can see what is happening in both parks and which things only happen on a limited schedule.