CBreezy--how is there intent of further aircraft movement by the same crewmember sitting in a crewroom until midnight after the last Mesa flight has left the airport for the night?

Mesa is doing that! People are sitting airport rsv with no flights on their schedule and THERE ARE NO MESA PLANES TO FLY.

How would you explain that to a POI? How would you explain you have any anticipation of further aircraft movement when all flights have left and none are scheduled inbound?