Long Wait? (Score 1)

Considering that new content was known to be coming with the release of the 2.3 patch (which happened two days ago), I seriously doubt that WoW has been suffering any major 'waiting for the next expansion' subscriber losses yet. If the pre-BC timeframe is any indicator, that should happen in the final months before the WotLK release when the bulk of Blizzard's software engineering staff is concentrating on finishing the polish on it.