Oh, believe me, I have no worry about IJA coming to Hollywood Studios. I have no illusions about any plans for the ride in Walt Disney World. I'm just saying, if it were to go to the Studios, like so many on these boards strangely seem to have a hankering for, it would be a horrifically diminished experience. A thousand times worse than Star Tours, too, I might add.
And saying that it could fit in Studios because of how well Tower of Terror does is like saying Tower could fit well in Disneyland because of how well Indy does. The Twilight Zone Tower of Terror is pitch perfect for the Studios because of story, theming, and content as it relates to the rest of the park, not because it is an entertainment franchise. Really, the key phrase of the ride is 'Amid the glitz and the glitter of a bustling young movie town at the height of its golden age, The Hollywood Tower Hotel was a star in its own right, a beacon for the show biz elite,' not 'you are in The Twilight Zone.' There is a parallel between the two rides, though: Indy is to Adventureland/Disneyland as Tower is to Sunset Boulevard/Hollywood Studios. They serve as a kind of thematic anchor for their respective realms, both thoroughly grounding you in the reality of each area, and solidifying your belief of the land as an expansive area beyond what's actually physically there. Not so coincidentally, they also represent the pinnacle of themed design within each park. That is why they work so well, way beyond any strength their branding give them.