Timeline and raids

We all know BWL release was delayed a bit due to testing and stuff,but since it got ~fixed,will it still release 7 months later here or Nost staff will stick to their official timeline where they stated "Regarding raids, Black Wing Lair will be available 2 months after Molten Core & Onyxia Lair content is cleared".
I don't know if this could affect server progression but Im just curious.
I don't know if this could affect server progression but Im just curious.