https://www.pcgamer.com/destiny-2s-snake-faced-bastard-will-finally-start-selling-forsaken-exotics-next-week/

Still haven't got the One-Eyed Mask to drop? Your luck might finally be in. A small but significant change coming to Destiny 2 in next week's Season of the Drifter will see Xur, the weekend vendor better known to the community as "that snake-faced bastard", begin selling Exotic items from the Forsaken expansion. 

The change is notable because Exotics became substantially harder to acquire in the Forsaken era, and with the loot pool diluted by Y1 items, the community felt frustrated at not being able to get the newest stuff to drop. It also ensures that Xur will have some utility again, having been largely useless throughout Forsaken because he only sold the old gear, which many players had already collected.