You guys have a point with the sub-title Heroes of Warcraft, but it does seem a bit tacked on, everyone just calls it Hearthstone. Like it could easily change to Hearthstone: Angels and Demons; or Hearthstone: Zerg Rush, etc.
But if it never happens, you won't see me crying, I'm hardly a Blizzard follower.
Do any of you think Hearthstone could/would add expansions from their other IPs? Maybe even adding 'classes' from Diablo and Starcraft; I'm sure this has been discussed before. Not saying it better happen soon, or even in the next few years, there's still plenty of WoW to pull from.