Thanks for all the responses
I intended this to be a discussion on how the mass wow-society will respond as a whole, but individual responses work towards the same answer anyways.
Well, for myself, I tend to quit wow now and then although I'm playing for almost 6 years in total. If my life is dull, I return. If exciting stuff happens, I quit. WoW is like a filler for me. I love doing whatever I'm doing intensely, and WoW is no exception in this manner.
I'd probably feel a bit bored for a while, but could easily find something else to do.