I don't see a Diablo expansion named Project anything... The word Project is usually connected with Sci-Fi games and such, the same way they wouldn't name an expansion Operation Blackstone. It doesn't really fit mediaval theme... It could be a side project, as the newspost suggest, something like "get 10mil. photographies of diablo players with black stones (ideally shaped like the black soulstone) and we'll tell you the name of the xpac... also everyone gets a banner sigil and a wow pet"