This Secret IP has me intrigued as to why it's "secret". Is it something that people aren't sure about yet? Or is it something that they don't want to be "Game of Throned" with some sort of tricky rights issue that insiders feel might force the IP to withdraw if it's leaked early?
Not expecting an answer, and when it's revealed that should answer my question, but Brian's latest comment on in makes it sound like there's some potential interesting drama around it
Edit - My $0.02 on the potential properties for a 30 years house, they don't have to cover all 30 years of course. Just a best of, hopefully with rooms that haven't appeared in other "best of" houses. Though they could try for all 30 years - have an animatronic Crypt Keeper at the entry to the house saying, "Welcome to 30 years of nightmares and fear boils and ghouls" or something silly like that, then the exit scare be Jack the Clown saying something like, "You didn't think you'd escape this terror without seeing me, did you?" and then have the Bill and Ted phone booth in the house with a puddle of blood and two sets of legs sticking out ala Wizard of Oz with their signature guitar riff being a jump scare.
B&T, Jack and Crypt Keeper have to account for like 15-20 years of the event. (Zero research on my part, so I could be way off) But something fun like that where superfans could figure out how every year was represented without making the house too hokey would be really cool.