https://www.pcgamer.com/ni-no-kuni-2-reveals-the-lair-of-the-lost-lord-dlc-due-in-2018/

Austin billed Ni no Kuni 2 as "one the best JRPGs on PC". That's hardly faint praise, and while its first slice of added content didn't add too much to the Revenant Kingdom (it was free, after all), its first portion of premium DLC sounds more whole wholesome. It's due "this winter". 

Named 'The Lair of the Lost Lord', things kick off when a mysterious gate appears inside the Rubbly Ruins that leads to a Labyrinth. Things get more fantastically whimsical still when we learn The Prince of Wraiths, "the mysterious rule of the Labyrinth", plans to use this portal to corrupt and destroy the Evermore Kingdom.