Hearthstone Viewers Can Earn Packs via Twitch at BlizzCon

@BlizzHeroes posted that watching one hour of Heroes of the Storm on Twitch on September 12 grants a seven-day boost. @PlayHearthstone separately stated that watching Hearthstone during BlizzCon yields up to four packs, linking to a viewership guide on blizzcon.com. Several replies from fans expressed nostalgia for Heroes of the Storm and asked whether the game is returning. The posts treat the rewards as confirmed viewer incentives without further details on eligibility or distribution.