Until Aenelia grows a pair, or realises the chances of Cathay effectively countering anything it pretty slim, all they will do is plan, gather support and get no where. Cathay's position is pretty clear at this stage, so unless they have a massive change of heart, or a new ruler, it is unlikely that Aenelia is going to find a loop hole to attack Arcaea. But then no risk no gain
Still that round of investments by the ruler of Aenelia in Arcachon certainly helped get the economy back on it feet, which means MORE GOLD TO LOOT