The latest patch for Hearthstone contains a few interesting bits about possible future content, if you know where to look.
According to Hearthpwn, Intrepid dataminers have uncovered info on three new card backs, titled Molten Core, Ragnaros, and Golden Celebration, though no images are currently present in the game client. The Molten Core card back seems to be tied to “brm presale,” which likely refers to Blackrock Mountain, the zone in World of Warcraft where the Molten Core can be found. The Ragnaros card back comes from ranked season play, while Golden Celebration seems to be tied to a license, possibly from another Blizzard game.
With no solid news on new content since December’s Goblins & Gnomes, it seems likely that Blizzard might have something to announce about Hearthstone at PAX East next month. Will Blackrock Mountain be an adventure set like last year’s Curse of Naxxramas? I’d almost be willing to bet a golden legendary on it.