Wow currently counts active subs as active accounts that are on game cards, and free accounts in some parts of Asia where WOW is free to play with only the current Xpac being behind a pay wall.Even at 4 FUCKING MILLION that is not a "last leg" scenario. Can we get some hyperbole in here?
No way WoW goes free to play in the next year. I could MAYBE see in 2-3 years a guild wars 2 model but they have zero of the infrastructure built and this is blizzard we're talking about.
Rest of your post sounds like a bunch of poopsockers pipe dreams. "Yesssss...the evil Casuals will have to play a hardcore game nowww!!"
Tokens also helping those numbers.
In 2011 at the height of it's popularity China alone accounted for over 3.5 million of that sub base.
You are delusional if you think WoW has 2-3 more years at it's current rate.