TDL is completely rebuilding their Space Mountain and it looks beautiful!
It gives me a lot of Shanghai Tomorrowland vibes with the multi-level, the blues and the giant courtyard in front of the attraction, but does a good job of combining a sleek new look that is fitting of Space Mountain with great modern architectural design.
Here's the TRON plaza I was referencing. There's clearly some things from things from this that inspired the new TDL Space, but they passed on TRON to update the classic attraction and give it a new sleek look that is timeless whereas TRON's aesthetic I feel is already starting to become a bit dated.