S.T.A.L.K.E.R. developers GSC Game World have officially announced that they’re working ufa888 on “Call of Pripyat”, the 2007 open-world shooter’s second standalone expansion.
https://kotaku.com/s-t-a-l-k-e-r-getting-second-expansion-sequel-5207526
Due for release on PC this fall/autumn, CoP is set directly after the events of the main game, and tells the story of an attempted military takeover of the region.
New features include a new storyline, new characters, new monsters, more sidequests, a new player riches777 interface and, best of all, a new feature allowing you to keep playing the game even once g2g1bet the main storyline is complete, RPG-style.