Ability to pick a race at random before the loading screen ("Random (known)"?)

I.E. like "Random" race, but the opponent knows the race at game start. The reason is because I like to play as all races, but some opponents don't like to play against an unknown race - some simply immediately leave when the game starts.

Note: for the case where a Random race(s) plays against a Random race(s) (e.g. 1v1 or 4v4 etc), I don't know whether Warcraft 3 works the same way as StarCraft: Brood War, but in StarCraft: Brood War, in this case, the probabilities are adjusted so that there is less chance of a mirror matchup. If Warcraft 3 works a similar way, W3C should adjust the probabilities the same as how Warcraft 3 would adjust them.