Firstly, let me say that i am very excited to see this game announced. Lost count of the many hours spent playing GalCiv II.

That being said, if there was one thing that bugged the ever living crap out of me it was encountering a planet with two special tiles that were both 300% boosts to farming. I found this annoying because if i slapped down the best farms on both of them, the population of the world would quickly become untenable, reaching into the hundred billions. Acceptable for a Hive world of the Imperium of Man, but not for a world in GalCiv, as that world will wreck your approval ratings and make that world very vulnerable to foreign influence. 

Personally, i think that a good idea for GalCiv III would be something like domestic trading. Say, in the case above, you have a world that could produce a metric ****ton of food but you don't want that world to have a huge population, but you still want that food bonus. An idea would be to build a freighter and set it up on an internal trade route so it picks up food from what is now a farming colony and takes it to one of your economic worlds. That way, you can have a huge population on your economic world which has buffs to approval structures (and thus many approval structures) while still taking advantage of those farming tiles on the farming world. This would also mean that you need to see to the security of the farming world, as a smart opponent (either higher level AI or human) would notice the trade route and try to take the farming world, thus causing massive depopulation on your economic world. 

This doesn't have to be limited to agriculture. You can trade other resources between worlds as well, and this could open up new trading options with other civilizations, thus making your trade ships actually trading goods rather than magically generating income for both parties, though this should still be possible by trading "bulk goods".

Thoughts on this idea?