I wondered if someone would argue this, but I firmly believe a screen based attraction, in a moving ride vehicle, or even a simulator, are still so fundamentally different than anything most people can experience on the regular, it goes without saying. I think they will have greater longevity.
But of course, ANY attraction can be timeless, regardless of the IP or the mechanism at play. I just think the nature of the Muppet attraction, the medium, does not help keep it around forever.
But I also believe most of these screen based attractions will need to be seriously upgraded or fully replaced after 30-50 years. There is a reason we really only count a few attractions as timeless.