I also like the tagline that angelicurrr mentioned, "What you see, you soon will be." Think about that for a moment. That sounds somewhat similar to 13:Your Number's Up, except with a circus theme. One of the biggest problems with 13 is that aside from fear of heights, you only witnessed fears from a third-person perspective. However you weren't really "thrown" into most of them first-person.
I really think that they will re-purpose the fear of heights for this maze, especially if people vote for a tightrope. Both of their suggestions could look really amazing, or really cheap. The circle of fire could be very effective, but if it's faux fire, it would have to be a large circle. Otherwise, faux fire would just look like light ground fog.
I'm also excited for the new Terror-torry, Sideshow Square. However, I have also noticed that they are easing back to the term "scare zone". This could be a good sign. It could mean a shift to adding more actual scares in the Terror-tories. Don't get me wrong; I love the atmosphere of Wendigo Woods, but the 'scare' is barely there.