In my opinion it would be a great addition if bigger space battles had a tendency to create debries fields similar to the destroyed arks. With the difference that you cannot revive a complete fleet, but probe those fields for tech, events, and so on; maybe there are even pirates hiding in them after a while, or maybe you find a ship of one of the fleets that is still operable if repaired.


To make it even more interesting there could be a tech "Space Drones" (I would suggest in the military tree) that enables probes to search shipwrecks and the like.


That is the basic idea... Feel free to discuss and add stuff. :)