The trouble with most of your list, vod, is that during the last 150 years, almost every nation with an organized government has been guilty of similar if not the exact same charges. The names change but power does what it does.
There are several big things I think will come back to bite China in the ass. From the outside, the most obvious is lending so much to the US. There's no way China will ever get their money back and the dollar will continue to lose value through 2020. They most likely knew this going in and are betting the US will need to cut some sort of deal in the future. Not to sound like a Fox News commentator but folks in Alaska better figure out how to say "Drill, baby, drill!" in Mandarin.
They also need to start dumping money into
quality infrastructure. A country as large as China could spend half of its GDP on new projects and it wouldn't be enough but expanding their rail system and bringing high speed rail to rural areas should be a priority. With so much new wealth and an actual middle class (which didn't even exist 40 years ago) the larger cities on the mainland are becoming overcrowded and are always congested with traffic. There is no rush or peak hour in some cities, just a near-constant traffic jam. Beijing is limiting the number of new vehicle registrations with a lottery but that's not a remedy. Making it easy for people to live well outside of the city but have less than an hour commute via rail or other mass transit system would help considerably. Getting more cargo off the highways would be even better.
China could also use nationwide standards for big things like worker's rights and building and pollution regulations. Heck, they could even stand to improve simple things like contract law.