I'd like to add a couple of words.
I don't expect Chinese behaviour is going to change drastically for the better. Certainly, as Paul hints, when the three Ms are dealt with, we can return, I would hope, to a somewhat more normal relationship, with exchanges, high-level visits and dialogue.
The physics of power, however, and the nature of Xi Jinping and of the top echelons of the Communist Party are such that they are prepared, more than in the past, to use that power and that Deng Xiaoping maxim to “hide your strength, bide your time”.
I would argue that China's time has arrived, in their eyes, and they are prepared to be somewhat more aggressive, to throw their weight around and to act like a great power—even the superpower-in-waiting that they are. That, I fear, is the reality.