It might be a re-tread of Dead Man's Wharf, but I'd like to see a scarezone based on The Fog. They already have a fun 80's theme (if leaked stuff is true) and two Carpenter properties.
I hope the music in the park also has an 80's theme, even if some is just inspired by 80's stuff.
I also thought an Escape From New York scarezone would be awesome, but that would likely include a lot of guns and I really don't think the time is right for that.