I don’t usually post rumors and unconfirmed stuff, but last week the San Antonio Express had a small article on their website that Korea would play at the Alamodome in San Antonio on January 29th of next year. The opponent would likely be Mexico. The KFA has reportedly made plans for the team to train in the US and Brazil, and is also looking at scheduling one other friendly match (right now, supposedly Ecuador).
Bear in mind that as of right now, and I don’t think it’ll change, that Jan. 29 is not a designated international friendly matchday, so the only players that would be there are likely to be K League players, as the K League would be in their offseason. So, Koreans in America keep your eyes and ears open.