Don't know how i didn't hear anything about it and i might not be the only one but it's coming back for a 10 part series.
Captain Jack will be in it still (yey) and i think Gwen will be too(not sure on this, when the guy was asked he didn't confirm her). This time i think it's mainly done in America but they travel to other countries too.
http://vodpod.com/watch/5155150-russ...hwood-season-4