XCOM 2's latest expansion War of the Chosen was announced at E3 2017. The expansion is so massive that the team considered turning it into XCOM 3.

XCOM designer Jake Solomon told Polygon that the team wanted to make War of the Chosen into XCOM 3, but doing so would have called for a new narrative.

"But for us a sequel also requires an entirely new narrative, we're very systems-oriented and so, for us, this is an opportunity to make a new experience, a new game," he said. "But we're not going to totally replace the narrative."

War of the Chosen expands on the campaign of the original game by adding three new resistance factions, each with their own Hero class. We will also see new enemies, missions, environments, and strategies.

Here's a summary of what you will find in the expansion

• New Factions & Hero Classes - Three additional factions – the Reapers, Skirmishers and Templars – each with its own Hero class.
• The Chosen - A deadly new enemy force that will kidnap, interrogate and kill XCOM's soldiers. They can even invade the strategy layer and ravage XCOM's global operations.
• New Alien and Advent Threats - Adopt new tactics to counter a deadly new alien known as the Spectre, the explosive attacks of the ADVENT Purifier, and the psionically charged ADVENT Priest.
• New Environments and Mission Objectives - Players can engage in wide-ranging tactical missions, from abandoned cities devastated by alien bio-weapons during the original invasion, to underground tunnels and xenoformed wilderness regions.
• Enhanced Strategy Layer - Manage relations with factions while countering enemy operations from the Avenger.
• Greater Customization & Replayability - Soldiers cultivate bonds with compatible teammates for new abilities and perks, while the SITREP system dynamically adds new modifiers to the tactical layer to make sure every missions provides a unique challenge.
• Challenge Mode - New regular community challenges that rank players on a global leaderboard.

XCOM 2 War of the Chosen is scheduled to launch August 29 on PC, PlayStation 4 and Xbox One, with a MAC release at a later date thanks to Feral Interactive.