Faction needs in diplomacy screen

Do you mean like in the Anno series the demand and offer possibilities? 

Sorry haven't played Anno so don't know how that works.
In short the idea is that the one AI needs titatnium (any amount or a specific amount of 50) and makes that knowledge public for all (doesn't have to but has the option to do it).

On the market that 50 titanium would cost 500 dust (just an example).

I can start negotiations and see that the AI has a lot of Jadonyx that I need.
So I can make an offer of titanium in exchange for Jadonyx and I know the AI needs this resource so is likely to accept this offer (unless he gets a better one from another player).

The negotiations could last for a few turns with each player making a better offer until a deal is made.

In the same way I could announce that I need for example Adamantian and someone will offer it for exchange for dust or and empire can offer for example 50 Adamantian for exchange for a trade agreement or a hunter class ship (if such an option will be introduced).

The whole aim here is to improve direct trade between empires with the bypass of marketplace so that you could build relationships.

I like it! It's like in Age of Empires!

I vote up!