Destiny is a cottage industry for fans, and an old image from October is making the rounds as a possible reveal of the game's future plans. The image may or may not be legitimate, but it suggests that the second expansion/DLC pack for the game is launching on March 10th, 2015, with three new story missions and a playable area (the Reef) that is briefly visited by characters but is not currently a playable region.
The image then suggest a major expansion, Plague of Darkness, launching in September 2015. Speculation is that this would serve as a sort of re-launch of the game, with bundled versions available as well as standalones for players who have already played the game; the expansion would feature another subclass for all three classes as well as a dozen new story missions and new playable areas. Take a look at the compiled information and decide for yourself how likely the rumor is in the end.