Ha, what plans? I may be Duke, Banker, General, and Marshal but I certainly don't know anything about Arcaea's "grand plans". Blame Selene, she hasn't shared anything with us except the possibility of creating a closer tie with Arcaea which I'm not so sure about, considering all they seem to want is the use of our lands to attack Arcachon.
Perhaps you should butt out of OW government 
Arcaea had plans to set up a new colony in Arcachron, this was common knowledge in OW when they joined the war, though you are a relative newcomer to the realm there should be plenty of nobles left who were aware of this. The sensible thing to be asking yourself is "why is Arcaea fighting and what do they hope to gain" before you go making your own grand plans.
