If we had something nice like Autopia from
Disneyland, I would be more disappointed to see it go. However, the Speedway at WDW-MK is pretty blah. It is a very basic simple path with no real theming or decorations around it. Would personally liek to see it get pulled out and replaced with something else that has a more futuristic/sci-fi look like the rest and some building struture to it to help fill in TL more and make it feel more imersive like other lands. Feel like aside from the walk into it from Main sTreet adn right around the base of TTA it feels very open and jsut looks onto other areas, where some sci fi structire where the Speedway is would fill it out more and feel more immersed within the land.
However, I am curious what they would put in Tron wise if not the lightcycle coaster. That's the most iconic thing from the movie, and seems odd choice to me to add something for a franchise they aren't doing anything with that isn't some icon like that.