The third expansion pack for "Hearthstone," titled "Whispers of the Old Gods," has been confirmed to have an April 26 release date in Europe and North America, while an April 27 release is in Asia.

It was first announced in March that the third full-sized expansion pack for "Hearthstone" will be available at the end of April or in May. Perhaps, the game's developer is sticking to its previous announcement because Blizzard will be releasing the expansion pack next week.

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According to reports, the "Whispers of the Old Gods" expansion pack will contain 134 new cards to be added to the game, plus the corrupted versions on various classic minions, Polygon has learned.

The same report also reveals Blizzard's plan to host a video stream this week revealing the rest of the 134 cards, knowing that most of the cards have been exposed already. Blizzard is said to host the stream on its official Twitch channel.

In addition, reports also points out that the "Whisper of the Old Gods" expansion pack will contain information relating to the Standard and Wild formats of the game. The formats sparked arguments, considering that this has been the biggest change that the digital card game has done so far.

The standard format only permits the gamer to use cards from the Classic and Basic sets from any adventures or expansions within the last two calendar years, while the Wild format allows gamers to use each card from the long list of expansions and adventures.

In regards to the price of "Whisper of the Old Gods" expansion pack, it is said that gamers can buy this with their in-game gold or real money. There is a discounted price for individuals who would pre-purchase the expansion pack, as 50 packs will only be sold for $49. However, gamers can only pre-purchase before the release date of the "Hearthstone: Whisper of the Old Gods" expansion pack.