From Bungee:
Destiny: Rise of iron is available on Sept. 20, and includes a new cinematic story campaign, a new location 'The Plaguelands' to explore, a brand new social space 'Felwinter Peak', a new six-player Raid, new and remastered three-player co-operative Strikes, and even more ways to customize your Guardian with all-new weapons and gear.
For game information, visit www.DestinyTheGame.com and follow the official Destiny social channels at www.facebook.com/DestinyTheGame and @DestinyTheGame on Twitter and Instagram. The community can interact directly with the developers at www.Bungie.net, www.facebook.com/Bungie, @Bungie on Twitter, and on Twitch.