Blizzard has announced the Founder's Pack, a purchasable bundle to gain access for the Heroes of the Storm Closed Beta, more details show:
* The Founder’s Pack price is not reduced if you already own items in the Founder’s Pack.
* Can only be used in the Americas (includes AUS and NZ) and Southeast Asia.
* Will carry over to the full version of Heroes of the Storm.
* Quantity may be limited
* Internet connection required
* Battle.net® registration and Battle.net Desktop Application required to play
See the whole information of the Founder's Pack here: LINK
Registration for signing up for the Closed Beta began on January 15, 2015. The release of the completed game however is to be confirmed. Platforms used for the game will be Microsoft Windows and OS X
What is Heroes of the Storm? - is an upcoming multiplayer online battle arena video game developed by Blizzard Entertainment for Microsoft Windows and OS X. The basis of the game is the combination of heroes from Blizzard's Warcraft, Diablo, StarCraft and other franchises and the game is set in the Nexus. It is a free-to-play digitally distributed online game, supported by micropayments. Blizzard does not call the game a "multiplayer online battle arena" or an "action real-time strategy" because they feel it is something different with a broader play style, they refer to it as a "Hero Brawler".
As a part of the arcade feature for StarCraft II: Wings of Liberty, a custom map called "Blizzard DOTA" was announced alongside several other mods of Blizzard Entertainment at BlizzCon 2010. In 2011, however, development of Blizzard DOTA was rebooted and demoed at BlizzCon 2011.
Following the announcement of Dota 2 by Valve Corporation, Rob Pardo, the executive vice president of Blizzard Entertainment, expressed concern at Valve using and trademarking a name that originated from within the Warcraft III community. Following a failed trademark injunction on the part of Riot Games, Blizzard acquired Riot's subsidiary, DotA-Allstars, LLC., the original company that represented the servicing of Defense of the Ancients. Subsequently, Blizzard filed an opposition against Valve for claiming the DotA trademark. On May 11, 2012, Blizzard and Valve announced that the dispute had been settled, with Valve retaining the commercial franchising rights to the term "Dota", while Blizzard would change the name of Blizzard DOTA to Blizzard All-Stars.
On October 17, 2013, the name of the game was changed to Heroes of the Storm.
You can watch the video updates and news concerning of the game through their youtube channel here: LINK