I'd love to see Movie World really invest in Wild West Falls. I know they probably won't because it's not new and all that, but unless they're planning to close it soon I think it's really worth a bit of investment. It soaks up the crowds (quite literally) and a really good experience with something new there would have a lot of guests leaving with significantly better thoughts.
At the very least, fix all the effects so they work reliably and they're timed properly.
Ideally add a few new surprises. Maybe animatronic. Maybe even projection mapping (and not like on SDSCNG).
Potentially, with some great imagineering, they could retheme it to a well known movie with appropriate scenes, and it would be virtually a new ride.