There will be players who will never be satisfied with the game and willing to pay. That is a fact. SE could release their entire vision of ver 2.0 tomorrow and you'll have people say "I'm not willing to pay for that."
Why?
Why buy the cow when you're getting the milk for free.
Thats why.
So SE could continue to not charge for their game and hemorrhage more money, and have players who are here for a free lunch. Or SE could start to charge, hemorrhage more money, but losing the leeches for free service.
It really doesn't matter development wise if SE loses players. They are banking on VER 2.0 to be the turn around. Not patch 1.20 or 1.21
SE is saying: "Heres the deal, you played for free for a year, but now it's time if you WANT to play you got to pay. If you don't WANT to play, thats ok, but feel free to drop in and check out the updates along the way, but we got big plans for 2.0 we'll let you play that for free for a little while just to check it out. But in the mean time if you want to continue service you need to subscribe."
T.A.N.S.T.A.A.F.L.