As an activist on behalf of the Tibetan people, I, too, would like to know.
However, I suspect the position of Rome now is the same as it was during Pius XII’s time: to be outwardly silent, but work behind the scenes.
In Pius XII’s time, there were many Catholics who would have been rounded up and killed if that Pope had spoken out too forcefully in defense of the Jews. This may be why, in his Papal encyclical, Mit Brennender Sorge, he criticized what the Nazis were doing, but did not name the Jews as the victims (though everyone knew that’s what he meant, I’m sure.)
Similarly, this Pope has the Catholics in China to also worry about, and he may be afraid that if he speaks out too forcefully, he will endanger the underground Catholic church in China.
Personally, I don’t really think him speaking out will accomplish anything. The mainland Chinese are Communistic atheists, and don’t care what the Pope says. And, it would only jeopardize the underground Catholics there.
I think it would have accomplished more if Pius XII had spoken out, since many of the Nazis had been Catholic, and perhaps a condemnation from him would had had some impact then.