A new icon system that preserves the nature of real world fights while correcting the limitations of the monitor would be an amazing...
This I agree with. I've often thought we should get limited info at long range - maybe a "1E" identifying the plane as a single engine type along with "2E" and "4E". You could then progress to plane type etc as range decreased. If you really wanted to get fancy, the range you get the plane type could be dependant on the viewing angle.
You must also consider depth perception. It's impossible to determine if a pixel is moving towards you or away from you while, IRL, it is easy to tell if something is moving towards or away from you from great distances.
There are possibilities besides what we have now, but off is, IMHO, far less realistic than what we have now.
Regards,
Hammer