No idea if it will be in shops, but it was SUPPOSED to come out on Steam like, last week, but hasn't. You can however buy a Steam activation code for it from the official running with scissors shop. That's what I did, just downloading it now .
Just saw that my copy of Jade Empire has been shipped and should get to my house on Friday. Been Bioware fan but have yet to play Jade Empire (On Xbox). Only rented it briefly once, my dad is an asshole and never really had a chance to play it because we were always watching sports.