I'm a firm believer that there is very little use for air attacks in most CM scenarios, since troops are in, or close to, small arms range of one another. Attacks in those situations just didn't happen all that often. As was described above, most of the worthwhile air attacks were in free zones behind the lines, looking for transport, etc, to shoot up.
So, I really hope that air attacks in CM:N will be as effective as they were in real life, which is to say, ineffectual a very high percentage of the time.
I also hope that aircraft will have a very difficult time spotting much.