Weeks after laying out this year's plan for Hearthstone, Blizzard has announced the first expansion of 2018: The Witchwood. Once it lands, the Year of the Raven will begin -- and all of 2016's cards will be retired from the main Standard format. The haunted forest-themed set will introduce 135 cards and several card types that introduce new styles of play. And like the last two content additions, players will get solo content for free. The announcement didn't give a release date, but if the last two years are any indication, The Witchwood will likely drop next month.