A new listing has appeared on their website for a TOS story, Shadow of the Machine, by Scott Harrison, who is making his Star Trek debut; his previous works include prose, comics, and audiobooks, including steampunk and Blake's Seven stories. The Simon and Schuster website suggests this is coming in December. There is something a little odd though, while the list price ($3.99) and format (ebook only) are consistent with this being a new ebook novella, the page count is way off; at three-hundred-and-four pages this should be a novel.
Set four days after the events of the movie Star Trek: The Motion Picture it will deal with the aftermath of the crew's encounter with V'Ger, as the Enterprise returns to drydock to finish its refit. The story will follow the characters of Kirk, Spock and Sulu as they return to their families, each haunted by their own particular personal demon.Thanks to Jim, of Jim's Star Trek books, for pointing me towards this.