This was just announced today! The folks behind the group are not affiliated with Disney, and these events are similar to "Bats Days" which is an event held at Disneyland every year. They will hold gatherings and events throughout WDW, but their central location will be (despite the construction) Coronado Springs. Gatherings are scheduled to take place at Magic Kingdom (which has MNSSHP on 9/22), and at Tower of Terror at Hollywood Studios.
Once again, the folks behind this are not affiliated with Disney, and this event is similar to "Bat Days" which is held at Disneyland.
Link to more information: https://www.spookydayintheparks.com/
Once again, the folks behind this are not affiliated with Disney, and this event is similar to "Bat Days" which is held at Disneyland.
Link to more information: https://www.spookydayintheparks.com/