Keep throwing salt over your shoulder for this rumor, but we are starting to get more and more news regarding the next Xbox console and its release time frame.  CNet has learned that General Manager of Entertainment Design, Don Coyner, has not left Microsoft but is “no longer leading the design and experience group for Xbox.”  Emma Williams, who helped guide the just-launched redesign of the Xbox Live interface, will be his replacement according to two sources inside MS.  Another source had confirmed that the successor to the Xbox 360 is due to release in 2013, with an official announcement sometime in 2012.