Here's an article/interview with Yu Na:

Kim will start preparing for the Winter Olympics in Sochi, which begin on Feb. 7, 2014, by getting in shape for the 2012-2013 figure skating competition season that gets under way in October. She will also compete in the Korean Figure Skating Championships for the first time in six years. Kim has yet to choose a coach
Some of the competition will be broadcast live by KBS 2.