ZeniMax recently announced the release of a special game back for The Elder Scrolls Online called the "Gold Edition." The Gold Edition presently includes the base game, the four major DLCs (Imperial City, Orsinium, Thieves Guild, and Dark Brotherhood), and certain vanity items, for $59.99.
For users who already own the base game, ZeniMax also released the "Guilds & Glory DLC Mega Pack," which offers the four major DLCs for a total of 5,500 
Crowns ($39.99).
For more information, visit the following pages on ZeniMax's website and/or Steam: