some ideas off the top of my head that would be nice. Some ideas will be silly.
1. The ability to flag some people to be saved for viewing even after they died. Not all of them, just ones that you flag by a click or by awarding a specific medal.
2. Random slow generation ship arrives into system. Might be good tech, might be out of date, but they will try to settle with say, 1 million population on a planet.
3. Random chance for a "Fleet of ships" race that travels from system to system with a large fleet mining it out and moving on. (Most likely this is a bad idea as it would bog the system down, but it still a cool idea)