I would love to see:
1. A simple abstracted tactical ground combat "arena" somewhat like we now have for space battles. "2D" would be fine, but something more then now, {pretty please}. {So we can maneuver around a bit and seize stuff and occupy dirt and blow things up more personally. So much more satisfying, lol!}
2. A more interesting "boarding" battle combat arena also.
3. The ability to set the maintenance cost of each individual component. Either as a percentage of builds cost or, better yet, specific values for each of the resources consumed each turn.
4. I'd like to see colonized planets generate usable population points to a pool like resource that are used as a "resource" globally, to build units, man starships, man factories. The "men" required would be specified in the component text. We could have other technologies, traits, components or facilities that reduce these requirements and/or increase their availability.
5. A larger space combats arena and a better "retreating ship" design. Having to go and hide in the corner or run around trying to run the clock down to survive, while cute, leaves much to be desired. How about... If you are slower then the pursuing ships you get caught, and if you are faster you automatically get away. I know it's a bit more complex then that and yes maybe there could be techs that modify that basic concept but generally if you are slower you don't get away, unless the enemy chooses not to pursue. If you are faster you get away even if they are pursuing, barring the uber-secret long-range tractor beam or temporal glue your mad scientists just invented.
