Not so sure that your Dark Angels are going to launch soon. Here is a placeholder on the site ready to go for Games Workshop. I am not sure how long its been there, but I don't recall seeing it before.

http://www.games-workshop.com/gws/catalog/landingArmy.jsp?catId=cat440171a&rootCatGameStyle

Please remember that this is not written in stone, but simply another piece of the jigsaw puzzle.