I highly recommend The Host, if you like Stephenie Meyer's writing. It is about an alien race who are taking over the Earth by way of using humans as host bodies. It is a really interesting take on humanity and human emotions. I think what makes Meyer's work so successful is her characterization.
The Host is an older book and is not in the Twilight Series. It is true that Ms. Meyer felt betrayed, but has since stated that because of the overwhelming outcry from her readers she will indeed complete the novel from Edward's point of view. We just don't have a completion date as of yet.
"Midnight Sun" is the working title for the next installment of the "Twilight" series. This novel will mirror "Twilight" except it will be from Edward's point of view, instead of Bella's point of view. This book has not even been completed yet. On the author's website she has stated that it is not finished yet. The orginal novel was illegally posted on the Internet and there was some question for awhile as to whether or not she would even write the novel. I wouldn't expect this volumn to be completed until at least 2010, however, there is not a firm date issued by the author or the publisher. Be patient.
Unfortunately, due to an online leak, the book "Midnight Sun" was put on hold indefinitely. Stephenie Meyer felt betrayed by the leak and is not sure if she wants to continue working on the book. However, she posted the leaked manuscript on her website, so you can read an early version of the book there!
I do not think this will be released because this is written in Edward's perspective and this was leaked on the internet. From the draft that was leaked Meyer's was unhappy about this and I do not think she has any current plans to continue writing it
Sadly Midnight Sun was put on the back burner since someone leaked it out onto the internet. You can read what she wrote on her blog. She states that it's unlikely that she'll ever finish it since the whole façade with leaking the story sort of put her against continuing the story. Let's hope that one day she decides to finish the story.
I think the new book is called the host