If you find any information, please reply as I'm up against this same question.
I just want to know if my app could still work on IOS9&10 without any update after Jan.1,2017.
Please read my App Transport Security pinned post and then write back if you have follow-up questions.
Share and Enjoy
Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware
let myEmail = "eskimo" + "1" + "@apple.com"