Destiny 2: Gods of Mars DLC Details Outed by PSN - IGN

According to the PSN description, Gods of Mars features a brand new area for players to explore called the Frigid Vale of Mars. You’ll be going up against Charlemagne, who has reawakened on Mars and imprisoned Rasputin within an ancient vault. With the help from Ana Bray, players must free Rasputin, defeat Charlemagne, and uncover the secrets of Clovis Bray.

Gods of Mars also features a new enemy faction and bosses to battle, new story missions, new gear, weapons and armor, new co-op activities, and new competitive multiplayer arenas. The new enemy faction might be Charlemagne's Remnants, as the PSN listing suggests the Remnants will be the main enemies players will be battling throughout Gods of Mars.