..."The Good, The Bad, The Weird's" Jung Woo-Sung, with Woo producing while John H. Lee directs, is in the works: http://www.deadline.com/2011/01/remake-of-john-woos-the-killer-underway/
Woo: “While all my films are special to me, THE KILLER is truly one of my favorites. We are thrilled to reinvent it as an English-language film and know it’s in capable hands by the incredible visual style and tender emotion John H. Lee brings to all his films.”
I just hope they find time and money somewhere to remaster the original into a proper high-def release to coincide with the home video releases of this remake. That's all I want, is it too much to ask?