I heard that Flippers/John's Jukes now has all of the designs and would be taking over. That said, haven't heard anything about this since:
https://www.flippers.com/pin4sale.html
Look towards the bottom of the page, also has a link to the defunct website:
"Midway ROTATION VIII game owner? Do not despair! Help is available here...(well Jim's web site) - we are taking over the Rotation IV repairs and design from Jim. Hope to have more info soon!"