Davies: Tennant staying for whole series

Doctor Who showrunner Russell T Davies has confirmed that David Tennant will portray the iconic Time Lord for the entire duration of the next season, contrary to tabloid reports."He's doing the whole series," stated Davies in an interview with Doctor Who Magazine. "It was never even discussed that he might leave after six episodes. That's completely invented by the papers."However, the hit drama's boss admitted that the longer term future is unclear. "None of us knows exactly what will happen after series four," Davies admitted, "[but] there's already talk of a 2008 Christmas Special."