I don't think that will happen. More likely, Mugabe is getting a flow of cash into his bank accounts to shut up and allow the Chinese to flood the country with people.
What the blacks of Zimbabwe will discover once there is a critical mass of Chinese there, is that the Chinese want the mines, but do not need black workers. They have enough peasant workers they can ship over to reduce overcrowding in China. The blacks of Zimbabwe will get the same treatment the Indians got in the US: get out of the way or be exterminated
I have the feeling that the Chinese already have a perfect plan. If I were a dictator I would import a few Chinese families on the farm, start working. Then hire a group of Zanu-PF thugs to cause trouble since the Chinese somehow tick Mugabe off. Mugabe arrests said Chinese, then the Chinese have the perfect excuse to off Mugabe and seize control of the country.