OCA only? No idea if OCA's have been updated with New World episode. I know for a fact that new world cards such as Vespa, Cornus, Hillslion, Centipede, Tatacho (all those 20% resist shield cards) are dropping. The cards for every current episode are already in the game's database, they can be spawned by GMs, but Nidhoggur mobs aren't spawning in-game yet.