Three things to start with. If you don't do these... that's it.
1: The debeigeifacation.
2: Add reflectivity from orbit.
3: Add transparency to ice worlds and shine to metallic worlds. Along with the lighting effects.
1. They plan to fix it, we just don't know when or how.
2. Yeah, this would be a nice graphical improvement.
3. Would be nice, but low on the list of things to address I'd say.
These are all graphical improvements though, and honestly won't do much at all to make exploration better (although fixing the beigefication would help the most). What we really need are exploration mechanics and content development.