Not too sure where to post this idea or maybe it's already in the game. At the moment each map consists of planets with random qualities and the rest are all set to 0.

My idea is maybe later in the tech tree technology could become available to colonise/terraform some of the 0 quality worlds and depending on a random variable and the level of the tech a planet quality could be given. This would help in situations where all the good planets are colonised. It might be good to have the planet a random one chosen so it could be a race to colonise.

Just an idea any comments would be appreciated.