During BLIZZCON preparation a guy of the cleaniing service found a Blizzard's pc opened, and shooted some pics with mobile phone that look related to the logo and a possible mount
First one can see only the main colors of the logo, the guy missed the title, the others are quite fine
tThe next pic is a bit damaged but prob is the artwork for a mount, look like a Pony or something so
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Don't touch this now evil moderator!