[Not confirmed] Galakrond will be a special hero class for the evil classes
Starting with the BlizzCon on November 1 we will know more about the upcoming Hearthstone Expansion, but there have already be some leaks.
A few Days ago Hearthstone Box (a deck tracker developed by Netease) just posted a tweet on Chinese Weibo, implying that the next #Hearthstone expansion is about the Dragons.
Today, Daniel Ahmed, Analyst for a consultancy group posted on Twitter that the newest Expansion will be focused on Dragons. Galakrond will be a special hero card for the evil classes. I would say the person is trustworthy, so the leak too.
The Evil Classes are: