Comets are deadly that being said we all know the effect of natural disasters . In the next galciv a comet has hit earth and utterly distroyed it and the people of earth has went to the torian confederation for help and the kindness of the torians they have offered a new habibable planet to help the earthlings. In this new era earth has little technology since rebuilding is a hard task and starting techs are scarce. The ship designes are based on earth and torian technolgy ,kind of a mesh between the two so this offers new ship designes. Also spys have become more important and they need training offering new techs anti-spy and cover ops these allow spys to disrupt trade routes industry and research also effecting military and social productions. Starbases will take a new turn in that they will be more powerful in the military department and not easily destroyed . Starbase with the miltary will have a module that allows for auto-attack when a ship comes in sensor range thus providing some sense of security. Improvement for the AI and modify its behavior will be key. Behavior logics and military prowess all can be modified. Preparing for a mega event will be important cause say a famine hits and your unprepared then economy will suffer and you can cause revolt effectively turn a planet into pirates and they will atttack you.