Blizzard Entertainment released new details today about the next update to Hearthstone, as the game is getting a new mini-set.
Heartstone Archives
Today, the Hearthstone team at Blizzard announced that an update coming next month would include balance changes to several cards. Once these card changes are live with Update 10.2, players will be able to disenchant the changed cards for their full Arcane Dust value for two weeks.