I just recently watched the Inn-side Story #26: Content Plans again and realized that they mention there will be another AI threat coming in the Forsaken Shores update. They describe it as "themed to that part of the world" and "very different to what we're bringing in beforehand" and "to add difference and variety to the threats you're going to encounter".
With the recent news from Gamescon, we've gotten information about Devil's Roar, the row boat, and the new merchant alliance mechanics, but haven't heard anything about a new AI threat. I'm really hoping the volcanoes aren't the AI threat since it sounds more like an environmental hazard, like storms. And so far each AI threat can be defeated in some way and I don't think we can defeat a volcano.
Here's to hoping we get more information in the coming weeks! (Maybe this Thursday when we get the row boat video?)
I've included the video below and the Forsaken Shores talk starts around 10:30.

