I would love a Med theatre add-on as well, especially since it has been a quite forgotten part of the war in computer games.
I don't know if anybody of you reckon it, but there was an air combat sim. based exclusively on the Desert fighting: the game was called "Desert Fighters". It was cancelled and it never came out, but I remember flying in the demo in the C.202 over northern africa in 1999 (I was in Canada at that time).
It could be something new and refreshing, as the original Il-2 has been for the Eastern front.
But... I would also love to see a France 1940 campaign, so...
Whatever will come out, I'll buy it. As long as it has propeller planes in it, I'll be sold for it
Cheers
Rick