Straight from bethesda's website:
https://bethesda.net/#en/events/game/fallout-4-add-ons-automatron-wasteland-workshop-far-harbor-and-more/2016/02/16/77
At the bottom of the article you can sign up for a free dlc beta. https://account.bethesda.net/en/settings/beta/fallout4dlc/signup
-
I'm so hyped for Far Harbor! Never expected to go to Maine o; and it's supposed to be the biggest open world add on Bethesda has ever made!