World of Warcraft had over 7 million subscribers before December 2013 .
The fifth expansion set , Warlords of Draenor , was announced at BlizzCon 2013.With over seven million subscribers as of July 2013 , World of Warcraft is currently the world 's most-subscribed MMORPG , and holds the Guinness World Record for the most popular MMORPG by subscribers .
World of Warcraft