This would be an awesome scenario to make using the editor. When I read about, and saw the pictures on the editor, I was sold. One can make any map, and scenario, anything one can come up with. So this scenario would definetly be possible to make.
One does not have to simulate the entire World map, but maybe in bigger scale, Europe only, ofcourse Including European Russian, up until the Urals, Scandanavia, England, Balkans, and Italy all the way to Spain. And not to forget Turkey, Iraq, and Iran who would no doubt me important as well. With sacraficing all the extra room that would be needed for the Atlantic and part of the US, this map could very well be very detialed, and would envolve a great deal of forces.
I for one will most likly jump straight to the editor and start making my own scenarios, like Fall Blau, Operation Saturn, and possibly this what-if scenario.
Another scenario I would like to make is a very detailed campaign focusing on the 41-45 Operation around Lenningrad and the Baltic reagions and Norther Europe.