In addition to the news that Titan may not be subscription-based, today's Activision investor call also shed some light on WoW's most recent round of subscriber losses. Blizzard says that the subscriber loss was more or less evenly split between Eastern and Western markets, which is to say that they've lost subscribers in North America, Europe, and Asia. However, patch 5.2 and 5.3 both had a positive impact on subscriber numbers and Blizzard is working on making returning to the game easier for players who have left.
While there's been a lot of panic over the subscriber losses, Blizzard isn't throwing in the towel yet: in this call they assured everyone that they're committed to the World of Warcraft playerbase (that's us!) in spite of the subscriber downturn and other projects like Titan on the horizon.