From what I have heard they didn't even get approval to put the Kids scare actors into the maze until pretty last minute, the did have Demogorgons though but none of the kids, just like Hollywood, so I think part of the issue may have been that the maze wasn't designed for those scare actors (the kids) to be there originally and the plan was to use mannequins. This year, since I will assume they plan their casting to include all the kids with the success of last year the maze, the maze this year will be designed more for scares. I am super curious what they do with the dogs, the Mindflayer, and if they end up doing anything with the vines in the tunnels.