With series 7 expected to start filming in the next couple of weeks, Steven Moffat gave a clue in the foreword to yesterdays concert in Australia about the new companion.
Doctor Who's 50th anniversary is coming. In Cardiff, we're gearing up for the biggest, the best and the most ambitious season we've ever made. There will be shocks, surprises and heartbreak - the Doctor is about to say goodbye to his very best friends, Amy and Rory.And then he's about to say hello to someone very different - the Doctor is going to meet someone very new in the very last place he could ever have expected...