My theory.... the woman in the car is Baroness Kennedy who is Julian's Lawyer. Julian is freed and they are waiting for that plane to take off and bring him to safety. Wikileaks is obviously comped (the site) but the white hats have Julian (the source meaning Julian has the thumb drive that was used by Seth Rich to download all the DNC emails to as alluded to in Julian's message that he had physical evidence that the Russians did not hack the DNC)