At the risk of stating the obvious, I would like to remind people that it would pretty easy to write a whole bunch of World War II scenarios right now...there are dozens of platforms in the CWDB that are for ships, planes, etc. built before or during World War II. (As I recall, there is a Soviet battleship from 1911.)
As for platforms that are not in the database yet, I would recommend NOT requesting an entire WWII package (a huge amount of work for the developers) but simply identifying specific ships, aircraft, etc. that are needed for a particular scenario. That way, one by one, and two by two, they can be added. The Cold War database will soon swell to include many more World War II and 1940s alternate history platforms.
Then we can start on the World War I platforms.
Slowly, but surely, we will assimilate history.