this is probable to late and i am sure someone will tell how wrong i am.
there are these special mines that pop up and can generate some cash flow. i am thinking that some of these mines should give a per turn credit instead one lump sum.
i would also like to be able to charge empires a per turn amount for my trade goods and or tribute.
also when you make your etho choices it should affect your standing with other empires not just your citizens.