At least the ladder rating display would be nice since this was demanded already 1000 times in aeolus as well and should be nearly no effort. The favorite maps you can watch the persons replays as well to get an overview.
About the player track thing i know some people are afraid to be rated by others and see the true reality of their skills estimated by other players
If you dont want to make other people estimate skills i cant see another way to estimate because win ration on different spots would not serve well here. If other positions fail what happens very often that does not include you are bad at this position. The bad thing about players rating you is having a bad day or beeing unlucky will lead to immidiate effect and people will give you shit ratings.
The maximal version of rating would be to add for every player a recording which position was chosen and rated on which map. If host will change the map the new ratings are shown of this map and then he can change your position and your rating will be shown again different. sice there would be lots of different maps with different positions saved and calculated average that would be insane ammount of data and fill very slow. Ok thats stupid. But what i offered in my pictures was more like you can watch the most played maps to estimate what kind of gameplay this person likes and see the skills in
close land war
air fight
naval fight
what i thought is more useful than the specials in my post above is to add
early game (which stands for rush)
late game (which stands for eco)
this system would reduce it to a few points and fill fast since only the last 15 games on that position should be taken into consideration. Idk but please tell me the things which are against this old player track system, what was bad about it? I simply dont know any atm.