I'm not from the crew, but since the game is running on the same engine, and the grafics don't seem to be that much improved, I guess the game will have the same specs as DD. Well, maybe a bit more, since there is a zoomfunction now (I thought), and maybe some heavier effects, but I don't think it will require that much more power.
If I were from Larian, I would make the game run on the same specs as DD, since not all DD-fans have very powerful computers.
The only thing I want to see changed, is the time of the "quick load". Wasn't really quick here <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" />