Spielberg has threatened Universal to the extent that they would never dare remove E.T. from Orlando. They did remove it from Hollywood and Japan and replaced it with superior rides BY FAR (ROTM and Space Fantasy) and they cheesed off Spielberg to an extent that he signed his first ever contract with Disney shortly after.
But regarding Transformers, it is designed to bring in crowds to USF and make the resort a 2-park resort FOR ALL VISITORS, rather than just IOA for WWoHP.
USF has ROTM, HRRR, MIB, Simpsons, ET, Jaws, and that's about it. Nothing else is relevant in the slightest.
Disaster, Dispicable Me (lol not opened yet but come on, the simulator tech is older than Simpsons), Terminator... all of these need to be replaced with more modern and meaningful attractions.
But you know what? The best place for Transformers I say is in the location of that stage building at the back of the park between Amity and MIB (forget what it is now lol). Get rid of it and build a new building. The area is big enough, and then 3 major attractions will be side by side.
Then please incorporate Middle-Earth based on The Hobbit movies for around 2015.
Then USF would be virtually equal to IOA - notwithstanding IOA's WWoHP phase 2 plans to coincide with Avatar at Disney's AK!