I think a dark ride may be in the works. Screamscape reported the scooby doo dark ride at six lags st Louis is closing, leading to speculation that it's going to be replaced by a copy of the justice league dark ride Sally corp built for warner brothers studios Australia. Considering the last few seasons the park has been filling holes in the ride lineup, a dark ride could be an addition. Plus, the closed off portion of movie town would be a perfect site for one, and since the areas closed off it explains why we haven't seen any construction markings. Plus, when six flags usually unveils a new type of ride, they usually unveil it in more than one park, so my money goes on either a copy if the justice league ride or a new ride system using the scooby doo theming from St. Louis.