Iām thinking macOS, but Iām hoping itās iOS and Bluetooth.
A Book Of Secret 
Commodore 64 by Tutorials! Advanced BeOS Tutorials!! ColdFusion Feast!! About time!!
Itās going to be macOS by Tutorials.
Maybe the book will be Unity 3D with C#.
I wish it will be about app architectures!.. or something like āHow to be a successful iOS programmer when you have a wife and two kids and youāre professional Java dev and donāt want to change anything in your lifeā¦ by Tutorialsā.
IOS architectures by tutorials
Im going to guess āAlgorithms and Data Structures Using The Swift Programming Languageā
Definitely macOS by Tutorials.
the secret spy life of The Ray wenderlich team! Realistically an android programming book!
This book is about Advanced iOS debugging
If there will be a Design By Tutorial? That will be amazing!
Iām going with Swift 3! Maybe comparison or upgrading from Swift 2!
It will be āSwifty drivingā
I think it could be āAndroid with Swiftā
Iāll guess āGames with Unityā ? Canāt wait to find out 
It might be server side implementation using SWIFT. If not then we would like to have one
Thatās easy: It is āFrom Pizza to Nizzaā. How to convert Pizza to Codelines to get money to buy a House in Nizza :]
āObjective-C By Tutorials: Putting the id back into the IDEā
I think it will be Swift 3