I think them adding some kind of base building / planet / ship personalisation will go a long way to adding some depth and interest to the game most games of the genre have it.
Space flight & combat also needs a huge overhaul to make it even remotely interesting for anyone who doesn't want pure arcade style combat, also the ships just aren't very diverse, and don't actually feel or operate any differently, and there is a serious lack of weapon types.
At the moment, for me, the carrot of more planets to explore just isn't doing it, they aren't diverse enough, that said, even though I don't actually like the game, I find myself returning to it (albeit only for about an hour at a time), I am probably locked in the skinner box hoping that there is something good just round the corner, although realistically I know that isn't the case.
Bizarre.
That said, if all my $60 has gone to is for the prospect of them fleshing the game out, then I am happy that I haven't wasted $60.