Well, it is open late, can tell you that for sure. A lot of the restaurants take reservations for after-official-park-closing-hours...for example, I went to Disney Dining website & put in 10:00 PM in Epcot on 9/23 (which is evening EMH) The park officially closes at 9, but of course stays open until midnight with EMH.
Numerous Epcot restaurants came up with 9:30-9:55 times, including Via Napoli for 9:30 PM for either party of 2 or 4 (didn't try any other size) Teppan Edo had 9:55 seatings available.