Fantastic end to season 4 tonight, and a fantastic end to Russell the T’s tenure as executive producer (was the title of tonight’s episode, “Journey’s End” also a reference to his own departure from the series?).
And I’m so relieved David Tennant isn’t leaving. You see (and non-Whovians won’t understand this), fans need a grieving period, which starts when it’s announced that the incumbent actor is leaving, allowing most of the season to grow accustomed to the forthcoming change. Replacing Tennant without any warning at all really wouldn’t have been very fair to the fans.
One of the great perpetual disappointments of the classic series was the writers’ refusal to explore the characters’ shared history and continuity. Davies recognised this fault (as a fan he probably shared it) and sought to rectify it, which he has done in spades. The episodes he wrote were a bit hit-and-miss, but there’s no doubt Russell the T will go down in Whovian history as the Doctor’s saviour.