Well this was a surprise. Unfortunately no details are known about the game at this time but the official Mass Effect facebook page
posted the following "Oh yes, it's real, and it's coming this Fall!"
So apparently a Mass Effect themed Risk is coming this fall. It would be cool if the game board was the "Galaxy at War" map from the game and you played as either.. well the entire united galaxy or the Reapers trying to take over the Universe.
We will of course post more info when it becomes available.