I think a good feature to add would be interactions with the Wild Nature nation. That players can do things that can both please it or anger it. And based on a players relation to nature can have different effects.
Some basic concepts of pros and cons.
Good
Nature blesses the weather for you-all ships sail faster
Nature blesses your fishermen-they catch fish much easier and faster
Nature Blesses your ships in battle-you are more accurate with shots and harder to hit.
Nature allows you to use some sea creatures on your enemies
Bad
Nature gives you rough seas- slower ships
nature gives you less fish
Nature makes your battles harder
nature will occasionally sick a sea creature on you.
What actions that please and anger it are up for debate, but i really think we should start trying to come up with ways to incorporate it into the game.
I would love to hear what the rest of the community thinks.