I would welcome cosmetics. Any sort of additional cosmetic upgrade would be great. Perhaps some "construction kit" to make your own engine effects - not sure how it can be coded but maybe something like having several engine equipment slots for "modifiers": colour, particle type, trail, etc. Maybe an equipment slot in civilian ships for textures (that would only be bought on the capital planets for a lot of monies). Also more light colours and maybe adding an "enhanced" pimpship plugin that would put in three light hardpoints in one place allowing you to manipulate the light colour a bit more easily.