Personally I would want DLC to be an Expansion focused on New York City IMO. Although that does sound awesome.
Looking at it on the map and the settlement clips from the trailer, it might be in the base game as we see a swamp base in it and Hockomock swamp (googled it and thats the spelling it gave) is the largest swamp in the state and doesn't seem to be too far from boston.
Wonder if Plymouth Rock will also be in...
New York City should be a own game and not just a DLC.
I would love to see some northern New England as a DLC. The deep backwoods and mountains of Maine, New Hampshire or Vermont would be really cool.
Salem is on the coast And Salem has more relation to Lovecraft than Long Island... which has no relation to Lovecraftian lore.