What is Aislinn even supposed to have as a unique mechanic?

All I can think of is something about controlling the seas through Helf colonies, past or present. Full blown British Empire.
>Citadel of Dusk
>Fortress of Dawn
>Estern Colonies
>Controlling Lothern as the super central hub
>Reclaiming Star Tower in Lustria
>Reclaiming the Great Turtle Isle in Lustria
>Conquering Marienburg in the Old World
>Conquering Fyrus in the Araby

And since CA is apparently in dire need to impress given the delay, I dare even hope that they can add some new settlements across the ocean to give more content to seafaring factions.

>Tor Andar to the right of Cothique, making it a three settlement province
>Amazon Island and Columbo's Island/Santa Magritta in Lustria
>Spear Reef Island to the right of CItadel of Dusk