Assuming wdwinfo maintains the park hours calendars, i.e. doesn't revert to originally-published hours after a month is over, May 2015 has MK closing at 10 PM every day but three: May 22 was 24 hours, May 30 it stayed open until 1, and May 31 it closed at 7
http://www.wdwinfo.com/wdwinfo/hours/may15.cfm. In contrast, there are currently 14 midnight closings, twelve 11 PM closings, and only five nights where it's closing at 10
http://www.wdwinfo.com/wdwinfo/hours/may16.cfm
Yes, there's no Easter in May. Easter, and now Spring Break in the northeast (where it counts

) are over and those hours can't be extended retroactively. Whether TPTB are listening, or whether this was planned doesn't matter. Park hours aren't cut for the month with the most DAH.