Hearthstone set for an expansion with over 100 new cards

Hearthstone's little trip to Naxxramas went pretty well, but the game is headed for something bigger. An expansion has been confirmed to be in the works for the game, as we first reported during PAX Prime this year. Production Director Jason Chayes has now revealed that the expansion will add over 100 new cards with a central theme tying all of the additions together, far more than the 30-odd cards added to the game during the Curse of Naxxramas adventure series.

Chayes told Polygon that one of the big concerns for the team is making sure that the pace of new content for the game neither bores veteran players nor overwhelms new arrivals, making an expansion something of a challenging prospect. If the expansion goes well, the plan will be to mix up full expansions and single-player challenges over the course of a year, giving players more things to look forward to. No hard and fast details have been announced yet, but expected them in the near future.