The signature sheets are still being circulated to the contributors for this deluxe edition. At this time they have been signed by over 50% of the contributors. Once received, production will begin immediately on this edition. We are working with the authors to finish this process by the end of December so that production can begin by early January at the latest. If production can start by January, that gives a 95% probability this edition will be shipping to customers by March/April. Thank you to all of our customers for your patience as many authors are signing these signature sheets.