So like
@CerberusGate said, New trailer for the first expansion just come out!
Hooraah!!
Also some new detail on feature;
ADVENT, in its bid to recapture the Commander, responds by deploying a deadly new enemy force called the “Chosen.” The expansion also includes other new enemies, missions, environments and increased depth in strategic gameplay.
Here is a list of XCOM 2: War of the Chosen’s key features:
NEW FACTIONS & HERO CLASSES
Three additional factions have emerged to strengthen Earth's resistance – the Reapers, Skirmishers and Templars – each with its own unique abilities and contrasting philosophies. These factions provide powerful hero class soldiers to aid in missions and new opportunities for the strategy layer.
THE CHOSEN
The Chosen are the most cunning enemies XCOM has ever faced, each with unique strengths and weaknesses that will be introduced with each new campaign. The Chosen are on the hunt for the Commander and will kidnap, interrogate, and kill XCOM’s soldiers to complete their objective. The Chosen can also invade the strategy layer and ravage XCOM’s global operations. Find and raid the Chosen’s strongholds to defeat the enemy for good.
NEW ALIEN & ADVENT THREATS
A deadly new alien known as the Spectre, capable of creating dark copies of XCOM soldiers, has snuck onto the battlefield. Adopt new tactics to counter it as well as the explosive attacks of the ADVENT Purifier and the psionically charged ADVENT Priest.
NEW ENVIRONMENTS AND MISSION OBJECTIVES
Engage in tactical missions across new environments from abandoned cities devastated by alien bioweapons during the original invasion, to underground tunnels and xenoformed wilderness regions.
ENHANCED STRATEGY LAYER
Manage XCOM’s relations with factions and counter The Chosen’s operations from the Avenger. Employ new Resistance Orders to prioritize your personal strategy. Soldiers, scientists, and engineers can now be deployed for Covert Actions that award supplies and boost faction favor if successfully completed.
GREATER CUSTOMIZATION & REPLAYABILITY
Soldiers can develop bonds with compatible teammates for new abilities and perks. The SITREP system dynamically adds new modifiers to the tactical layer to make sure every mission provides a unique challenge. Advanced campaign options allow for finer adjustments to game length and difficulty.
CHALLENGE MODE
Utilize the perfect strategy in new regular one-shot community challenges to claim the top spot on the global leaderboard.
SHARE THE RESISTANCE
Customize and pose your soldiers, then add filters, text and backgrounds to generate your own unique resistance posters that appear in-game and can be shared with friends.
From the stream:
- Chosen enemies get more powerful as the game goes on, just like the player.
- Different kinds of Chosen with unique abilities.
- 3 factions. Players need to recruit them to your cause and they give you access to super powerful classes. Templars look sick.
- The Lost, new zombie-like enemy type that moves in swarms. They are drawn towards the sound of combat and never stop coming. They attack both aliens and humans.
- August 29th 2017 PC/XB1/PS4
Also some mod author apparently were amused at how firaxis made their work easier in some aspects since they can just go "the expansion already handles this"