Good point there! If they really wanted to keep it, but use a smaller Autopia footprint, I've often wondered how that could fit into the space currently occupied by the Carousel Theater and Pizza Planet. Likely would have far more sharper turns, and might be flatter.
I don't know if it could ever work, though. Obviously if they go down that route, that takes up a lot of space that could be used for a different attraction or a new restaurant, and frankly, I'd rather have one of those two than Autopia in a New Tomorrowland. But if they are insistent on keeping that attraction, it's future one day will consist of a smaller footprint no matter where it goes. Because the majority of that land is too big to be used for a low capacity attraction. If they adjusted the Rivers of America footprint to fit Galaxy's Edge, they will certainly do the same for Autopia. IF they intend on keeping it in a new vision.
If not, then they'll do what exactly what they did to the Rivers in Florida. It all depends how and if they see want Autopia to stay.
The lack of announcement regarding the electric vehicles makes me wonder, though. Nothing has been said since 2024.