Great Suggestion. Id love to see a orig league. I know quite a few players that would come back for that and have fun with it.
Problem is... It's been done before and failed miserably. Bw is the most balanced we can possibly get....
If anything I would suggest making the korean map standard. This is coming from someone who has only played a few times on it but can see just how much greater the balance is on that map. For me that would suffice the aggravation I feel playing it and may even boost some of our own skill levels a bit more.