On a different note, what would people want (aside from modding capability) in an expansion/DLC? Personally, I would like a couple more ships (that still need to be unlocked, of course), and more game styles/campaigns.
For that, I'd suggest a game mode where the goal is to get some ludicrous quantity of scrap and go to some place. The sectors would be more spread out, in a spiral-ish pattern, instead of the linear fashion appropriate for the quest in the game right now. The more central sectors are tougher and have better loot, and you need to get to the centermost with some quantity of scrap. Or perhaps your score would be modified by how long you took (varying inversely) and how much scrap you got (varying directly).
Perhaps another kind of alien or three?
Another race of alien meant for challenging play (i.e. they are
worse than humans stat-wise, but maybe start with a more adaptable loadout once you unlock their ship), maybe another one that have "learns slower, but up to 3 levels" as their racial bonus (though it may just promote grind), one new layout for
every ship, with new achievements to unlock them, and a classic Rogue campaign. I.e., navigate sectors in one direction to get something, then navigate them
back through much more hostile territory to make use of it and fight another big baddie. And of course, new weapons, new drones, new upgrades, etc. Maybe an "overclock" mechanic where you can route extra power to a system to increase its performance, at the cost of a chance of damage every use (for weapons, teleporters or drones), or every five/ten seconds (for always-on systems). Maybe it could be a special ability of one of the new alien ships...
Also, I made a useful discovery about Zoltans. They supply power to systems they
stand in, not
work in, and they add one power point per crewmember. They keep adding that one point per crewmember even when power is otherwise cut by, say, Ion damage. If you stick two Zoltans in your shield room, you will never have your shield completely taken out by Ion weapons, so any enemy that relies on Ions and fire beams will be SOL. (well, either it's that or there is something else that prevented my shields from collapsing that one time. I will conduct more testing of this theory.)