This year's weirdest Soulslike, Lies of P, looks like it might be getting some DLC in the future.
While it isn't an official confirmation just yet, the confirmation of DLC does come from a pretty reputable source: co-developer and publisher Neowiz Games itself. As spotted by Okami Games, Neowiz seems to have accidentally let slip that "DLC [is] planned for production," on its careers page. It seems like Neowiz has realised that this was publicly listed, though, as you can't actually head to the careers page, it just redirects to the Neowiz homepage. Also important is the fact that it specifically says the DLC is "planned" for production, meaning at most it's currently in pre-production.
Because of that, you shouldn't expect any DLC to arrive until next year at the earliest. Obviously there's also the question as to what the DLC might be about; if you've finished the game and seen its post-credits scene, you know that there's some setup for a hilariously wild follow-up, but whether that's an idea for a sequel as opposed to DLC isn't clear just yet.