It was around the alpha / launch time. (I think there were a couple of occasions when the same question / answer came up)Oh, did they? When was that as I missed it (obviously)?
So... I guess we'll get... uhm.. I'm actually out of ideas what Frontier would realistically come up with. Maybe opening up further the galaxy in terms of landable planets? Not sure I'd pay for incremental fleshing out of existing content (unless they come with brand new mechanics/gameplay loops, content) unless it's cheap (~10-15 Euros maybe).
I'll try and find the comment and point you in its direction.