The speculation machine has gone into overdrive now, as Susan Lyne exits Martha Stewart Living Omnimedia (NYSE: MSO). According to NYP, Lyne is supposed to have lunch next week with Time Inc. CEO Ann Moore, leading to some thought that Lyne was being scouted to replace Moore, who has said she will not renew her current contract when it expires in the second quarter of 2010. This story from Portfolio also speculated on it yesterday.