We are actively investigating issues preventing players from connecting to Destiny on all platforms.— Bungie Help (@BungieHelp) September 20, 2016
Destiny: Rise of Iron is the next highly anticipated expansion to the Destiny universe. It features an all new cinematic story campaign set within The Plaguelands, a brand new location on Earth. Under the command of Lord Saladin you will face a new faction of Fallen Devils, the Splicers, while unravelling the mystery of the Iron Lords.
Rise of Iron features new weapons, armour, and gear, as well as a new cooperative three-player Strike, a new mode and maps for the Crucible competitive multiplayer, and an all new six-player cooperative Raid.
You can order Rise of the Iron as DLC or as part of Destiny: The Collection.