Quote from richardyu301:
It will not happen in the near future... they may change the pegging rate or include the tolerable limit instead.
China government's top priority is stability. They are willing to sacrifice anything in exchange of this. They could see what happened to Korea, Thailand and Malaysia a few years ago during the Asia Economic Crisis. They are not going to take the risk of loosing control of the currency rate.
And if the yen only appreciate by 10-20%, it is not going to hurt their export since you the Americans will be buying anyway. Actually this will only help us (I am a Chinese) since the major problem we are facing is that the raw material price has increased a lot but we can't raise our product's selling price....