Personally I think BTTF could have a serious shot at coming back.
The biggest expense would be having to redo the ride footage for the modern age and reskinning the cars back to the DeLorean…and some maintenance to the motion bases. Everything outside of that would literally just be a glorified paint job. To cover the dated feel of the ride, have a sign in the preshow room that shows the current time set to 1991.
The restaurants can be a quick retheme from Cletus’ > Doc Brown’s fried chicken, Krusty Burger > Cafe 80’s, and Moe’s > Uhhhh…..Biff’s Tavern?
I think they should just retheme Simpsons back ti BTTF. GP and the people my ago would dig it. It would be a perfect holdover until they find a better use of the space for another 5-10 years.
But yeah as long as the anchor ride isn’t another simulator (Which let’s face it, it probably would be), I don’t hate the idea of SpongeBob. Only thing is…would Nickelodeon allow a SpongeBob themed bar?