It's officially been announced over at the New York Toy Fair alongside a scaled down version of Blood Bowl called Blitz Bowl. The Necron models shown above are not included sadly, instead they are represented by tokens. The five Marine models included are from a range of snap-fit models that were sold in Japan(!) as blindbag items.

Quote:
Space Marine Adventures allows 1-4 players to join forces and attempt to break into a Necron labyrinth. Choose your hero and use each character’s unique skills to battle various deadly hazards, not least of which are the Necron guardians themselves. The easy-build nature of the kits and intuitive game make it suitable for players aged 8 and over – good for anything from family games nights to a quick adventure for a regular gaming club. While this set is a great introduction to the 41st Millennium, each Space Marine in the set is also a unique and dynamic sculpt, making them great additions to an existing collection, too.
I do expect you ladies to buy these for your kids and also to be sure to peer pressure all your friends into doing so as well.