Although this is the last set release for the WoW TCG, players will still be able to redeem loot codes for the game on the official website -- so don't despair if you've yet to use your codes for in-game loot! This announcement also marks the end of official tournaments hosted by Cryptozoic or Blizzard, but player-run tournaments will likely still be around for some time to come. At the moment, it seems that Blizzard will not be renewing the license for the WoW TCG.
This is, of course, not the last we'll see of Blizzard-inspired card games, with Hearthstone on the horizon. However, the WoW TCG, introduced during the Burning Crusade expansion, has been a constant for WoW players, and its contribution both in and out of the World of Warcraft will be missed. The announcement on the official website has more information for players, as well as a short FAQ.