We have seen nothing yet. Chinese tourism is going to go through the roof for the rest of the century. Boeing produces about 40 737s a month, plus other models, and production is only going to go up. Every fifth Boeing is going to China.
This felt very true in Switzerland this winter. We were the only non-chinese in a local bus through Interlaken. Not that I have something against it, just that they sure advertise it well in China. Also chinese street signs are slowly showing up.