I have a question for everyone...
Do you think that Tower of Terror will ever be taken down due to lack of relevance? sure, people are well aware of The Twilight Zone now, but perhaps one day it will be forgotten, or do you think it will always be a ride that people will be attracted to despite not knowing the series, knowing only the ride, as many people ride Splash Mountain, but know little to nothing about Song of the South.
Personally, I think people will be attracted to it even if they do not know about The Twilight Zone. However, I think something like Rock 'n' Roller Coaster will eventually experience at least a retheming, as that ride depends heavily on the awareness of Aerosmith and their music, while it seems ToT can be ridden without having seen one episode of the show.