Now, in yet another update to the calendar, two additional dates have been added.
Monday, October 25: EPCOT from 10:00 PM to midnight
Wednesday, October 27: Magic Kingdom from 9:00 PM to 11:00 PM
More dates may be added, and the schedule is subject to change. Seeing as all of the announced dates are Mondays and Wednesdays with every availability spoken for in October, unless another day of the week is added, this is likely the set schedule for the month.