It appears Super Junior-M will be releasing a new single or album titled "Break Down".
On December 30th (KST), SMTOWN's official Twitter account wrote:
Super Junior-M will make you #BreakDown @ Jiangsu TV NYE Concertlive.jstv.com twitter.com/SMTOWNGLOBAL/s…— SMTOWN GLOBAL (@SMTOWNGLOBAL) December 29, 2012
Attached was a promotional image with 7 members of Super Junior-M. With one member missing, it appears Siwon will not be taking part of the promotional activities for "Break Down".
Stay tuned to allkpop for more information on "Break Down".