https://www.gamespot.com/articles/new-horizon-zero-dawn-dlc-trailer-shows-off-its-go/1100-6454038/

Horizon: Zero Dawn's "Frozen Wilds" expansion is coming next month, taking players to an area called the Cut. This is a "boreal wasteland" outside of the base game's region. It's a cold, snowy place, and quite a marked change from the lush, colorful areas from the base game.

Now, Sony has released a new trailer for Frozen Wilds that shows off some of the environments players will find, including snowswept mountains and icy rivers. "It is a place where none but the most skilled hunters dare venture, and those that do must survive against dangerous new machines and freezing temperatures," developer Guerrilla Games said in a post on the PlayStation Blog.