It's such a shame to see one of their most popular franchises get treated the way Supercharged has been. Personally I would vote to gut the building and just put something entirely new in its place. Turn it into a show, ride, gift shop, or restaurant.
Start fresh and have F&F open as a totally new attraction in a different section of the park (Fear Factor + MIB?) to coincide with F&F 10's release, which probably comes out in 2023 at this point.