I no longer hope for that.
I think they will continue trying to slow people down desperately by any means possible - and the complete inability to make people stay via other means (like, you know, doing enough interesting content) will continue losing them tons of players every month and in the end will kill WoW as a product.
WoW was big a couple of years ago. Now it is no longer big, it is only big every once in a blue moon when they launch a new expansion, then people rapidly leave and WoW becomes small again. A couple more years and even launches will be non-events.