Fallout 4 is getting a big chunk of content with the Far Harbor DLC arriving tomorrow - the island on which it takes place is literally the largest landmass Bethesda has ever created for an add-on. Along with giving players plenty of new wilderness to explore, Far Harbor is adding new armor, new weapons like fish hooks, a lever action rifle, and a harpoon gun, and new irradiated wildlife to hunt.
While the harpoon gun has technically existed in-game for awhile (players discovered it hiding in the game's code last fall), everything else appears to be brand new. The marine combat armor is also pretty tempting, and not just because Bethesda claims that it is - aside from power armor - the best in the game. Personally, I enjoy good monster design, and Far Harbor's giant salamanders, bipedal angler fish, and giant praying mantises have piqued my interest.
Sole Survivors can take a tour of the island starting tomorrow, May 19.