If the ratings prove accurate, we'd imagine a PS4 version would likely be on the way too. For one, Thomas Was Alone is already on other PlayStation platforms. Also Volume, Bithell's next game which provides a modern stealthy take on the Robin Hood fable, is already confirmed for PS4 as well as Vita, Windows PC and Mac, so it'd be odd to see Thomas Was Alone come to rival platforms and not PS4. In any case, we've reached out to Bithell to find out more.
[Image taken from USK site]