The problem is that these and any other aircraft built outside of the USA, UK, Germany, Japan, USSR or Italy would have a very limited scenario potential and would only very rarely get used in the MA. It would be a lot of effort for not much result in terms of player enjoyment.
There are so many important WW2 aircraft that are needed for scenarios, some early war bombers for example, that I can't see stuff like the IAR 80 ever getting done.