[Spoilers] BBC Press release - series 9

[Maike]

(05-09-2010 06:14 PM)TygerBright Wrote:  apparently they had to go back and re-visit old eps and 'threads' to make everthink fit. What if Nightingale (in different disguises) has bee around much longer.. and that Vaughn charcater and Lucas' past are parts of the puzzle?

IIRC that was what RA said in an interview but I don't think that means they actually re-visited old storylines to show them in a different light. IMO he was talking about his own character backstory, the explanations he himself has found for Lucas actions/motivation and it turned out that the writers had something different in mind than he thought. He always does that and has already been through changing a character's backstory when the RH writers decided to reveal Guy's past.