If I remember correctly, Oleg stated in an interview or in few threads that he was building a new engine (SoW) that would be so good it could be used as a tool for movie production, and that he was aiming at nothing less than photorealistic results in BoB:SoW...
I do believe he will succeed. My feeling is that he is showing us wip that is few weeks or even few months old.
Remember the "leaked" cockpit video ? That was pretty amazing....And then only one cockpit screen with instruments with glass and reflections... ANd what we've got since few updates ? Only few screen shots of the same thing with only very small improvements...
He is pulling our legs guys !!!!
Sow will be fabulous !!!
Can't wait !