Sue has stopped in at the VIP thread at StarWars.com with an update:
…We’re all doing our best to keep it in the line-up and, if the manuscript comes in soon, the book will be moved again, maybe to April 2010. If there’s no manuscript, then it’ll have to be dropped. Events beyond the author’s control, or wishes, have caused the delays. I know, that really doesn’t tell you much, but it’s not my story to tell, ya know?
UPDATE: Today, Sue elaborates on why the manuscript has to be in at a certain point… And what it has to do with FOTJ.