I know that some con attendees are associated with some sort of Japanese club at a school, either at the high school or collegiate levels. I myself use to have ties to the Japanese Culture Club at Clark College, as well as the Clark Manga and Anime Club. I know that some people were requesting a Japanese language panel, as well as more panels relating to various elements of the culture (I myself was thinking about one for major holidays and festivals), but I am unsure on what has been submitted. That type of information usually won't be provided to the general public until 2-3 weeks before con.
