I mean, that's how DLC works, no? If whatever platform you're playing on has DLC, and you have the base game, just purchase and download it and it'll be in your game, no problem.
I've seen a few sites mainly stockholder circlejerk blah blah sites talking about it....but ND Twitter has said nothing and Atari has been as well...I'm wondering if this is a fake story to get Atari stock up