Blackfort Island now joins Tales From The Bird Islands with these new additions from Ulysses Ai :
The Island Of The Tyrant Island Of The Soulless
As written, The Island Of The Tyrant included ship combat - this hasn't been included in the online version (yet). Nonetheless, everything bar one side quest (which depends on an object from Crescent Island) is possible.
Blackmaw is now one of the possible destinations when you set sail, the other island is reached a different way...