Might & Magic: Heroes VI – Shades of Darkness

Ubisoft has officially announced the release date for the new, full-fledged expansion for Might & Magic Heroes VI: Shades of Darkness: February 28, 2013. The add-on will feature the return (or, more precisely, the first appearance) of Raileigh, a new faction of dark elves, and much more. On the same day, Might & Magic Heroes VI Complete Edition will also be released, including all bonus maps and items, all adventure packs, and the latest expansion.
You can find information here, as well as on the new website dedicated to Might & Magic.