3 new DLCs have been announced
https://bethesda.net/#en/events/game.../2016/02/16/77
Automatron, coming out in March, allows you to build your own custom robot companions, is 7.99 GBP (I don't have the Pound Symbol)
Wasteland Workshop, coming out in April, expands the settlement system and allows you to cage and train wasteland enemies as your companions, 3.99
Far Harbor is the first true expansion, adding new quests and the biggest add-on map to date. Worth about 19.99 Pounds
Also on March 1st, because of all the extra DLC stuff they've made, they're jacking up the season pass price, if you have bought the pass, don't worry, you are still getting everything and don't need to buy anything extra. (From 24.99 to 39.99)
Also expect survival mode and the creation kit (which allows mods on consoles) to come out soon, which will be free.