In general the human side of the galaxy needs more, and more varied, activity going on in the background to bring it to life.
I understand why it's not been there from the beginning - we have a game where Star Citizen enthusiasts still only have a promise because FDev focused ruthlessly on getting out the minimum features necessary to make our working game.
But this isn't a Kickstarter project now - it's a successful, well-established game. And at this point a bit more chrome wouldn't go amiss.
Additions like megaships are a start, but they're kind of static. More activity would be welcome.