https://www.gamespot.com/articles/destiny-2-finally-gets-a-new-enemy-faction-in-fors/1100-6460326/

Destiny has gone a long time without a new faction to test your abilities. The Taken were introduced via DLC, but even they were reused enemy types--albeit with a cool blue glow. Then Destiny 2 came without introducing a new faction at all, but the upcoming expansion Destiny 2: Forsaken will correct that.

The Scorn are a group of mutated Fallen enemies, which does give them the look of re-skinned enemies like the Taken. But according to a Game Informer cover story, their attack patterns are distinct. These fearsome foes are built around aggression unlike any other enemies so far.