File:WoDLogo fanmade.png

Source
Although fan art, this logo was used in The Art of World of Warcraft (page 186) to represent Warlords of Draenor.

It was created by ChristianMiller and posted on DeviantArt on November 3, 2013, with 5 days left until the first day of BlizzCon 2013. The logo was uploaded to WoWWiki for Warlords of Draenor content the same day it was posted on DeviantArt and has never been updated to the official logo that was revealed at BlizzCon.