http://www.youtube.com/watch?v=d_1J-HYtwSU
http://www.youtube.com/watch?v=xhsnOo-iWuA
http://www.youtube.com/watch?v=DTXYwf0cpZQ
Remembered seeing the hungering darkness one some time ago, found two more on mmo-champions channel..
Could this be something related to the legendary quest chain? From what I know these have never been announced, only the darkness one was on the frontpage some time ago.