http://www.pcgamer.com/leaked-listing-says-destiny-2s-next-expansion-is-called-god-of-mars/

A leak on the PlayStation Store that was captured by the quick-fingered folks of Reddit has revealed—unofficially, of course—that the next Destiny 2 expansion, set to come out in March, will be called Gods of Mars. The expansion will feature new stories and missions set in Clovis Grove and Charlemagne's Vault, with themed weapons, armor, and gear, co-op activities, multiplayer arenas, and a new enemy faction, Charlemagne's Remnants.    

"Destiny 2 Expansion II: Gods of Mars sends your Guardian on a long journey to a brand-new destination—the Frigid Vale of Mars, with an array of new missions, adventures, and enemies to fight," the now-removed PSN description states. "Charlemagne has reawoken on Mars and has imprisoned Rasputin within an ancient vault. Work with the elusive Ana Bray—long thought to be dead, in order to combat Charlemagne's Remnants, free Rasputin, and uncover the secrets of Clovis Bray."