Few developer in the business can deliver like FromSoftware delivers, and this applies doubly to DLC. For 'Dark Souls III,' the DLC journey starts today with 'Ashes of Ariandel' which can be had as a single DLC for $14.99 as part of the season pass (for $24.99, get it here).
For veteran 'Dark Souls'/'Dark Souls III' players, 'Ashes of Ariandel' can be summed up and brought to mind with one term, the 'Painted World of Ariandel.'
Of course, as with all proper 'Souls' DLC, this is not for beginners, and even those who have beaten the game will want to have a late game character (and not an early New Game+ one) ready to go.