Hi Guys
Just want to let you know there is a temp unofficial solution to all language audio Bible and audio book in Logos iOS App, however it will only works if you got an iOS device like iPhone or iPad with iOS 8+, basically it utilise the Speak Screen, here is how to set it up:
https://support.apple.com/en-au/HT202362
Myself and my minister have tested this feature again both Hebrew and Greek, and it works fine.