And I ain't talking about content. I'm talkin' about an update to its engine, servers, and an entire overhaul of its basic combat and raid design.
So let's say a major overhaul like that is in the works. BUT, the project is massive and will require an entire expansion's worth of waiting (2 years) for it to be completed.
Now think of a problem you've had with the game. Be it housing, additional sliders, no loading zones, interchangable music and so and so forth. All those problems will be fixed, but will require 2 years of waiting.
Would you wait for it?