Via Photo Rumors and Digicame Info (in Japanese)
I have zero interest in this lens by the way, I would rather choose the old FA20-35 F4 Full Frame lens which is still in production, which has a more preferable constant aperture option and is yet future proof, if and only if there will be a Pentax FF body to come! :-o
At the end of the day, for what I have to say, the red rings of those new HD Limiteds make me vomit, which make the "new" lenses felt and look like bastards! :-x