Well, from Luthier said about not wanting to release system specs yet as it is all subject to change right down to the final, it is speculation. Of course the best PC today should play the game at least on lowest settings (we know that from Luthier's hints) but everything else is not set in stone
I don't think Il-2 could be run on perfect settings at release, and even today you need a half-decent PC to play Il-2 on perfect (10 years later...) so whilst I think you may be right in what you say, I don't think that anything is certain yet
