I was just playing on a huge map and a couple things I noticed that would help. Maybe these are already in game and I just don't see them or how to turn them on.
1. Auto Space Miners. Space Miners should use the same auto code as flagships except targeting any owned asteroid belt that is not maximum quality.
2. Intercept report. Moo2 had this. This alerts you whenever an incoming fleet is targeted to intercept one of your fleets or worlds. You could have degree settings so that you could warn only if its an enemy, or only if the fleet has troop transports. it was really hard on the huge map to see what was going on with all the icons all over the place.
3. The ability to sort planets by whether you have their colonization tech maxed. I got early colonization techs, colonized a bunch of planets then later when I wanted to see how much upgrading colonization would be worth it was hard to find all of x type worlds.
4. A "next turn until" switch like Moo2. Many times the events that show up between turns are either already taken care of (one item built out of a que on world X) or not something I would slow game play for like my forge world building yet another small fighter (once per turn
5. An alert for when a planets spaceyard is full.
Anyway, its a great game just some minor things I'd like to see.
Below are some changes I would like for either GC3 or maybe a future patch depending on how hard they are to do.
1. The ability to arm asteroid mines would be a nice addition to the tech tree.
2. A stealth tree that hid craft unless the enemy had at least the same level of sensor tech. So if my stealth scout had 2 stealth and the enemy had a 3 sensor they could see me, or perhaps the range of sensor is reduced by the stealth level so the above example could see me at range 1.
3. The ability to move the base connector point on a ship extra to one of 2 places per piece (for example the little arm has its connector at the claw end not the base end, it would be nice to choose which to use).
4. Differentiation between strategic and tactical drives, strategic being the ability to move faster on the map and tactical adding combat bonuses.
5. The ability to Destroy one planetary tile per turn on unprotected planets you attack, perhaps tied to some sort of planetary weapons tree.
If you have your own suggestions add them. And thanks Stardock for a great game.