We're working on a wide range of things including one thing that has bugged me a long time: The way planets look.

Ugh.  These just look so bad.

Now improved to:

These will be part of an upcoming free update later this Fall.

We are also going to release a DLC with a bunch of new planet types (with really cool looking surfaces made from scratch to support the new system) that give worlds a little more character both visually and in terms of bonuses/penalties.