Whoa haha I was just about to post a thread about this :) I really really want this soundtrack as well. The main theme, as with most music by the super-talented Inon Zur, is amazing!!
Link to the main theme:
https://www.youtube.com/watch?v=nYVjtQaXl0A
I hope someone can upload this OST for us! I also want the game physically for PS 4! Make it happen n-Space and Digital Extremes!!