I think this could be for both good and bad . Good will be that the price would start increasing again and the market would be stable again. And bad can be for the people of South Korea as these restrictions may be implied because the government wants to check on the people and there transactions that they have carried out till date and would imply the taxes that the people have not paid for there earnings.
I guess the S Korea had followed whats the US action on Bitcoin. Soon we the decentralized meaning of bitcoin and cryptocurrency will be changed.