This just in from Mindy Johnson via the Disney History Institute Facebook page:

[Just got word from Disney Editions that my book, 'Tinker Bell - An Evolution' has been given the green-light! This fascinating look at the origins and high-flying evolution of one of Walt's most beloved characters explores the 13+ years of story and character development, featuring never-before-seen artwork and rarely seen photos! Details are being worked out, but the release of this lush, visual celebration of classic Tinker Bell will likely be Fall '13. Stay-tuned for more details!]