I'd be glad if it was possible but I guess it's not only matter of our or Square Enix will, because CN/KR versions are (techically) separated games from another publishers. Global version supporting four languages is both developed and published by Square Enix, while the CN and KR ones are published by Shengqu Games and Actoz Soft, respectively, and they, if I'm not mistaken, are the ones who handle localization in their regions. Maybe it will be more effective to let them know.