Yeah, and meanwhile some entropians
would like to see EU subscription based
However it's not lack of f2p that hurts WoW. I know a lot of people who play(ed) WoW from the very beginning and stopped recently or about to stop, because they lost perspective and got bored. Sure, they regularly get new content updates with rich storylines and all that, but after so much years it all started feeling the same (it never was a problem for EU, because while people whine about lack of storyline, most probably would still play even if all mobs were replaced with boxes... mm, wait, aren't miners already do exactly that
).
The only factor that keeps people is the community, but the more people leave the less this factor matters. The most dedicated people switch servers (non-single, unlike EU, world doesn't help too), search for new clans and parties but end up alone again, thinking about leaving themselves.
But unfortunately this all doesn't matter for EU, because all those people I know already tried it and ran away screaming