The announcement says that it includes new settlements. I'm not sure if this means a player settlement or if it means a settlement in the sense of a new city like Goodneighbor or Diamond City. Personally, I'm hoping to get at least one new settlement there. Given how incredibly popular the settlement building has been in this game though, I'm guessing that they'll be including one.
Why can't it include both? Bethesda isn't tailoring it to what YOU want. Many people, myself included, absolutely want there to be at least 1 new settlement location in Far Harbor.
You say "people like me" as though one cannot enjoy both settlement building AND interesting quests. I want Far Harbor to include new and interesting quests, and I'm certain that it will. I also love building settlements and I'd love to have a new location to use since I've already built up every settlement location in the game. Bethesda needs to make this appeal to their whole audience...which includes MANY people who absolutely love building settlements.