A french tech blog was told by Cowon that they were discontinuing the Cowon J3 after two years of production.
Hopefully a successor will come out soon. Either that or it's been suggested that they might focus on Android DAPs instead.
AnythingButiPod thread: http://anythingbutipod.com/forum/showthread.php?t=68524
Journal du Geek Article: http://www.journaldugeek.com/2012/03/16/cest-termine-pour-le-cowon-j3/