Expect more big announcements from Blizzard at PAX East this year
Though Blizzard hasn't made any official announcement just yet, PAX has released its schedule, revealing that the developer will host a panel on the first morning of the event with Dustin Browder, Eric Dodds and Jeff Kaplan—the game directors of Heroes of the Storm, Hearthstone, and Overwatch respectively.
The panel promises to show off "what's in store for 2015, including upcoming content for Heroes of the Storm, Hearthstone and Overwatch."
Hearthstone fans are already beginning to speculate that the announcement will include a new adventure mode for the game. There's certainly already precedent for big things to be announced at PAX East—Curse of Naxxramas, the game's first expansion, was announced there last year. And Hearthstone itself was officially announced at the same event in 2013.
Heroes of the Storm officially entered closed beta last month, and has had regular content additions throughout development. Activision Blizzard's earnings announcement revealed that nine million players had so far opted in to be considered for the beta. Overwatch was only announced by Blizzard back in November at BlizzCon, with a promise of the game being available in beta by the end of 2015.
Needless to say, any news about these two unreleased games will be gobbled up hungrily by their already sizable fan bases.