What disappoints me is the lack of communication on the 'Official' forum :(

[robtek]

Originally Posted by WhiteSnake

I hope for Oleg hese making the game for DX11 or it will be hoppelessly outdated by the time it comes out

Seriously i do hope the game uses DX10/DX10.1, light, reflections and smoke just would look awsome than, sill dont believe that OpenGL is capable of detail but i could be wrong...

afaik its been said that BoB:SoW will still use OpenGL and not DirectX as standard language.