The way I'm reading it, it sounds like a special ticket. Basically an add on if you want to do the Dark Nights stuff. I don't know if that means they kick out the day guests after a certain time, or they can stick around but won't have access to any of the scare zones or houses. It sounds like a logistical nightmare for the staff. I'm picturing it working like the Disney hard ticket events where there's a crossover between day and special event.