Yes, there are really only two Italian bombers missing from IL2 now: The Caproni Ca 135, which became Hungary's most important bomber on the eastern front, and the SM 79 JR - the jumo-powered version of the Sparviero widely used by Romania against the Soviet Union.
A few other missing aircraft come to mind all of which have some use in campaigns:
The Amiot 351/354 a French fast recon bomber, used by two 2 groups of the French airforce in 1940.
The Blenheim V used in the North Africa and Burma
The Kawasaki Ki-56 - used to drop paratroopers over Sumatra in 1941 (resembles the Lockheed Hudson with a fatter fuselage)
The Ju-88S and T used as high-speed 'pfadfinder' aircraft from 1943