My idea was to give for every single race a building or a module which would increase personality of races.
The first that came to my mind was an advanced freighter module for mercenaries korx.For drengin could be added a new powerful weapon, iconians a better research center,thalan a slave labour factory

,drath mmmm intelligence should be first improved and then add something to them, yor a superproject which allow them a +5 or +10 miniaturization abilities, arceans new defense and so on.