Not sure what you mean by that. Are you saying that if Disney removes all references and links to Twilight Zone (e.g. make the ride more like Tokyo's) that they'd still owe licensing fees? I mean, maybe they are required to pay for the licensing for a certain period, but I can't imagine the contract would call for Disney to constantly pay for a property if they are not using it.
Furthermore, WDW1974 already suggested that not having to pay the licensing fees is part of the motivation for this concept.