I imagine the preshow and story framing device for this show may have been tweaked after F&F opened (namely a high-tech operations room). But tweaking what plays on the screen in a preshow, or lines of dialog is not the same as changing the blueprints and building something different.
The only thing I’m kind of surprised about, if true, is the replacement of all the seats. Everything else we’re seeing is in line with information I’ve heard about changes coming to the theater. However, considering how long those seats have been there, I’m not surprised they decided to replace them as well.