Ayumi will be doing the theme song for a TBS drama that starts airing on July 3. The show is titled "高原へいらっしゃい". It is a remake of a show from the 1970's. So far there's no title for the song, but the articles suggest it will be a ballad.
http://www.sponichi.co.jp/entertainm.../05/20/02.html
http://www.sponichi.com/ente/200305/20/ente116954.html