The Dark Below, which some speculate is a possible new World of Warcraft expansion.
The reason for this is that "The Dark Below" is a part of Warcraft lore. "The Dark Below is a place inhabited by demons, devils and infernal creatures, from where some sorcerers take their power directly and sometimes have a patron beast to foster their magic," states an entry in the Manual of Monsters Warcraft source book.
Blizzard will be hosting a GamesCom press conference on the 21st August at 11:30am CET / 10:30am GMT. The publisher has not revealed what it'll be announcing, but often Blizzard has used a major expansion to rejuvenate World of Warcraft numbers, and the paid subscribership for WoW is at an 7.7M.
Blizzard trademarks "The Dark Below", hinting at World of Warcraft expansion
14 August 2013 | By JonahFalcon