Doubtful they are in production. I wouldn't be surprised if tooling and assembly prototyping were being worked on, but Apple wouldn't tie up it's production cap

Doubtful they are in production. I wouldn't be surprised if tooling and assembly prototyping were being worked on, but Apple wouldn't tie up it's production capacity with products that early; they would put that production space to work filling customer demand for current (or current + 1) products.