Matt has worked on many armies over the years, but his current project is to paint as many Space Marine armies as he can, in as many different colours as he can find (though with 144 paints in our paint range that shouldn't be too hard). Currently he has a full Blood Angels Battle Company, half a Company of Ultramarines, a substantial Imperial Fists collection and more Black Templars than he can shake a paintbrush at. He's already planning on painting "some green ones" next.
This is from the What's New Today blog thingy from GW. I think that the green ones Matt is working on are the Dark Angels. I think that this could be GW hinting in that direction, which means DA are going to have a codex up to par with BA and Necrons:) And now, you are released for speculation:P