Last month, Blizzard released the first expansion pack to its card-battle game Hearthstone. The Curse of Naxxramas expansion was a hit, bringing in new cards for players, along with new features and a redesign to the user interface. Well it seems Blizzard isn't just stopping there. According to Touch Arcade, details coming from PAX last weekend claim that the next Hearthstone expansion will have "over 100 additional cards". These new cards will be sold in a standalone card pack, which is safe to assume players can purchase with real-world cash or in-game gold. Folks who haven't tried Hearthstone yet on the iPad should definitely give it a try. If you're coming from Magic: The Gathering, or any other card games of the sorts, we're sure Hearthstone will be fun for you. Hearthstone, along with the Curse of Naxxramas, is available to play on iPad, PC and Mac for free, with in-game purchases.