It's worth noting that Blizzard was previously rumored to have registered a trademark for a game called The Dark Below, but that ultimately turned out to be a hoax.
For now, we don't know if Warlords of Draenor is the real deal or just another rumor. What we do know is we'll find out a lot more during BlizzCon, where Blizzard previously teased they'll be making a World of Warcraft-related announcement. BlizzCon will run from November 8-9 and IGN will be at the show, so keep checking back for more info as it's revealed.
Leah B. Jackson is an Associate Editor at IGN. Feel free to follow her/send tips on Twitter and MyIGN.