Hey, it's been a while
i am surprised this forum is still not down! i hope it will stay, good memories.
i don't play WoW for a long time, MoP was peak for me (and lots of us too), then a bit of Draenor, then i mostly quit and couple years ago left China.
To your question, majority (99.9%) definitely quit. i think last guild was TCW @ 亚雷戈斯, still probably is, but seems like WoW is gonna shut down in China.