XCOM 2: War of the Chosen
XCOM 2: War of the Chosen is the expansion pack to XCOM 2. The expansion introduces 3 new elite alien enemies called the Chosen, as well as 3 'hero classes' represented by different factions XCOM will have to win over. The DLC also introduces the Lost, former humans that will attack both XCOM and ADVENT forces on the battlefield.
War of the Chosen was released on August 27, 2017 for Windows users. It was released on August 29 for Mac and Linux users, and in September for consoles.