FYI: Warcraft Heroes of Azeroth (WHoA) is an April Fools joke, that isn't an actual game. Don't take Blizzard seriously on April 1st
Part of the joke was probably the acronym itself, since WoW is the word wow and this would be the word whoa. If you look at their packaging that they had on the page, it was merely the Warcraft 3 packaging.
I didn't read much of their page so I'm not sure if they threw anything else in there.