The yuan will strengthen... here are several reasons:
1.they will get rid of the dollars and most likely they will invest in more yuans (pushing up the price)
2.the yuan is indeed undervalued, artificially: because they kept it low, as it was good for the exports to do so
3.China's economy is slowing down, so they're putting more energy into stimulating internal consumption (naturally this will increase the yuan's strength)
4.the overall Chinese life standards have increased and are still on the increase... here I see another reason for a stronger currency