The names are escaping me, but I do recall rinkmates talking about a couple of young girls who used to train in southern China (shanghai, shenzhen etc), before Zhao become head coach, and due to lack of ice time, good coaches etc, their families decided to simply move overseas. As for dual citizenship, Chinese gov't does not allow it, I doubt they'll make an exception just for this.
Trust me they will. This is the Olympics and they want a team gold medal. That can't happen unless they have without a strong lady. And US ladies will compete for other nations if they don't think they'll get far with USFS. Alexia left last year and went to Nebelhorn, Europeans, The Olympics, and Worlds representing Switzerland.
It's extremely sad that the nation that birthed Lu Chen has to resort to looking abroad. How did we get here? Excuse me I have to watch some old Lu Chen videos to cheer myself up.