A trivial change that I think would be great would be making "geo survey complete" events interrupting events; right now they tend to get skipped over and my geosurvey ground units end up wasting a lot of time sitting on desolate planets doing nothing.
SJW: Above added for v2.3.0
I would like to see a way to export and import a player race, including names, images, and naming themes. I like to play "United Nations" games with a diverse set of race name themes, and it always takes a bunch of time to set them up when I start a new game.
Also, it would be nice to be able to import/export the naval admin command hierarchy, since this is also another big game setup step.
It would be nice if display options on the main screen and galactic map were remembered in the database and consistent across saves. Setting the galactic map display options is another time consuming setup step I do once at the start of every new game.
I would love it if scrapped or destroyed ships could have their histories retained, the same way we can preserve notable retired/dead commanders.