I don't have a lot of detail on this, but the news from Comic-Con is that Blizzard is finally starting to sell gold! Collectible WoW-inspired gold, silver, and copper coins, that is. What did you think I was talking about?
They'll come in both Horde and Alliance versions, and are being made by DC Unlimited. DC also handles the WoW comic, so that's unsurprising. If we hear anything more on pricing and/or availability, we'll be sure to let you know.