For branded products, e.g. Apple products, prices for consumers won't increase as Apple and other companies pay their chinese manufacturers a pittance. They'll have to start paying more.
For products with no real brand or 'worthlesss/pointless' brands, it will be interesting to see how it works out. In some instances, those products will get manufactured in other South East Asia countries instead like Vietnam, Indonesia, Thailand, Myanmar, etc. China is trying to move up the value chain, so that won't neccessarily affect them to badly.
PS. there's no hope for SA manufacturers of low cost products. Our labour will never be anywhere near as efficient as those asian slave workers (even at ten times the wages)