Can you imagine how many revisions these patches go through before they are ready? Do you think they had any idea how long some of this stuff would take when they started? I bet not, since it isn't really their style to not release a raid at this point.
Also, people would be screaming for their heads if they estimated a release date and didn't deliver. Better to say it'll be out when it's ready and just have people like you whining about it.