Here is an update on Midnight Sun from an interview last November 2008. It's really sad that it may take 2 years for her to continue working on the book.
ENTERTAINMENT WEEKLY: Is Midnight Sun still dead to you, or can you see finishing and publishing it in the future?
STEPHENIE MEYER: It's really complicated, because everyone now is in the driver's seat, where they can make judgment calls. ''Well, I think this should happen, I think she should do this.'' I do not feel alone with the manuscript. And I cannot write when I don't feel alone. So my goal is to go for, like, I don't know, two years without ever hearing the words Midnight Sun. And once I'm pretty sure that everyone's forgotten about it, I think I'll be able to get to the place where I'm alone with it again. Then I'll be able to sneak in and work on it again.