Its in the OpI also read somewhere that you'll be able to play Beyond: Two Souls in the correct order if you want.
QD posted this a few days ago.
https://twitter.com/QUANTIC_DREAM/status/633227066977161216?lang=en@teddybayad yes, we are currently working on Heavy Rain and Beyond Two Souls PS4. As soon as they are ready, we will let everyone know!