Shrek 4-d required a renovation as a minimum because the entire pre-show animatronic elements were installed, as was the finale animatronic in the speaker near the exit on conclusion of the film (i think it was a tinkerbell style fairy stuck in the speaker) - so it stands to reason that a "renovation" occurred by that logic alone. whether the seats, carpet, or anything else was changed, i couldn't tell you, but the pre and post show elements are proof enough.
As for WWF - the 'Rio Bravo' mountain theme is nowhere to be found in the storyline of the Wild West film. The 'old miner' "git out" scenes are likewise unrelated to the film. The pre-show (I never saw it) was reportedly film related but still otherwise unrelated to the ride, and likewise the ghost town, with the indian village, and 'ghost' action scenes have nothing to do with the film either.
Where you will find Rio Bravo is in Parque Warner Madrid - The Rio Bravo flume ride, which while it does have it's differences, shares pretty much the same overall layout (with the same scenes in the same order - reverse track turnaround, rail bridge, indian village, ghost town, back into the mountain) - http://www.thethemeparkguy.com/park/parque-warner-madrid/photos
(I'm pretty sure the town is even the same - "dodge city" with the same population gag)
It's clearly an identical ride in almost every way possible, except Madrid kept the originally intended name, given the film flopped and Madrid opened 3 years after it was released....
Although some theme elements have minor differences (no 'old faithful'... although these days MW's version doesn't have it either...) it is still very much the same ride.
I'm sure much of Wild West has been discussed here, but you'll probably find it's more LORE than LAW. Much of the info shared would come from former staff of the park, who were present at the time. It's highly unlikely it would be documented anywhere accessible to the public, and the park isn't likely to confirm it.