So on his Facebook page, Chance Thomas posted this on his status for the first song (Heart of a Hero)

"In 10 days, LORD OF THE RINGS ONLINE will celebrate its 10th anniversary. 10 years and still going strong! To celebrate, 10 songs have been selected for a top-10 countdown, one song posted each day, starting today (see below). These are fan favorites from the LOTRO music scores I’ve composed over the years. So let the countdown begin! With a grand celebration (AND MAYBE A SURPRISE ANNOUNCEMENT) coming on the 10th day…

I capitalized the the surprise announcement part because I'm hoping the announcement is that he is writing the score for the Mordor expansion.