But gutting the building would be throwing away half the work that's already done for them, just because the effects been so poorly maintained. Such a self destructive approach when there are other ways to create a big exciting haunted house (which is what it was always supposed to be).
More screens would be boring, we have Gangsta Granny
Only reason to empty the building would be if they want to completely change the theme.
Yep I don't think screens are the answer at all.
Look at Disney haunted mansion, one of the best dark rides in the world and barely a screen in it. Proper projection mapping, peppers ghost effects and getting the original lighting back would be far better. Also just sorting out the flow to remove the couple of sections where it just feels like dark corridor.