Add at least one more action bar. As you have 2 bars on the bottom, we could have up to 2 bars on side if chosen in options.
Definitely add the sound, ding, whatever when you get whispers... very easy to miss them.
Scalable and movable UI.
More then two window open at one time.
Option to get back to your ship from anywhere... can be on timer.
Unable to mark items in inventory as "not for sale"
Companions should have bags too /grin. As they do the most harvesting, they should have at least the harvesting bags, which they would unload when in ship or dismissed.... wow I like this idea!!!!!!!!