I would like to single playr game, but my suggestion is that stardock take the time to relaes it via patches. You could call them episodes or chapters and they woudlnt have to do with balbance at all.
  This is stardock's chance to craft a huge sprwling soty and explore the universe they created, so take yoru time and do it right. release them sepreately as chapters, chaptre 1 can be deal wit the TEC dealing with the vasrai invasoin, the vasari dealing with taking over and the advnets long journy to find a new home world. Stardock has plenty of time to craft a superb story on thier terms, i sugest you take it, the game is out so now you just have to worry about telling the story.