Quote
The figure marks an increase of over 500,000 subscribers since mid-March, when World of Warcraft was already the most popular MMORPG in North America, Europe, Korea, and Oceania. China likely contributed many of those subscribers, as anticipation for WoW was extremely high in the country. That enthusiasm hasn't diminished now that the game has been released. According to Blizzard, the beta test of the Chinese WoW localization saw 500,000 players online concurrently--roughly the same peak-number figures for North America, Europe, and Oceania combined.