Some of it might appear bland on the surface but sometimes less is more. If it ain't broke, don't fix it. They've stuck with the same formula for most things since ARR. I don't see them ever shaking things up. Unlike WoW they don't reinvent the wheel every expansion (though they do make some major job changes if they feel they are needed) and that's a good thing. The predictability is one of this game's biggest benefits.