DICE will announce more information about Battlefield 1‘s first expansion, They Shall Not Pass, very soon. The developer said on Twitter today that new details will be revealed next week.

A new teaser was also released, showing a club-wielding solider emerging from a blaze, standing in front of a French flag.

As announced previously, They Shall Not Pass is set during the Battle of Verdun, in France. According to DICE, around 1 million shells were fired in the opening parts of the battle alone, leading to forest fires, which is why you’ll see trees engulfed in flames in the DLC maps. A version of the Samogneux village, destroyed by war, will be the focus of one of the maps, while another will depict the battles that took place inside Fort Vaux.

A third map will feature a battlefield torn apart by artillery shells; according to DICE, around 40 million were fired during the entirety of the Battle of Verdun, “turning the earth into a shattered lunar landscape.” At least one of the maps will feature “underground fortresses,” DICE teased.

You can click through the images in the gallery above to get a closer look at concept art for They Shall Not Pass’ DLC maps.

In addition to new maps (DICE hasn’t said exactly how many are in the add-on), They Shall Not Pass comes with more weapons and dog tags. No release date has been announced, but people who own the Battlefield 1 Premium Pass ($50) can play They Shall Not Pass and the other three upcoming expansions two weeks before everyone else can buy them.