There are rumors that the State Fair could be moving as well. The only thing Big D has done is pushed DART to open a track and station in Fair Park. Otherwise Empress Miller had killed any other attempt at creating an environment for redevelopment in that crap hole that is Fair Park. Will be interesting to see what the new mayor will do. I don’t know much about him.
One of the museums is moving up to the Arts district (Natural History). And it would make a lot of sense to move the aquarium down to the zoo. But I can’t see the fair moving unless some developer has his eye on the property. But let’s face it - if you want land in the area for development, there is plenty available.
They have done a pretty good job of starting to clean up between the fair and downtown. It is even reasonably safe to make the drive during daylight hours.