There's a small, cosmetic feature I'd like to add, in the form of how weapon names are displayed in-game. Right now, you just see things like "SMG" or "Mass Driver", but that has always felt so bland to me. What if, on the buy menu, you could select from the "EM-7 Lasgun" or the "M40 Chaingun"?
As an added touch, when new assets come out for something, they can be treated as an upgraded model. For example, the current lasgun could be the EM-7 Lasgun, and the replacement model can become the EM-8 Lasgun.
I could come up with a consistent naming scheme and make the commits myself if nobody minds. Then I could do it for all the buildings too. Maybe I can come up with species names for the aliens.