 I spent today considering one tangible thing: whether to destroy New York in 4.12. That would be fun, wouldn 't it? The idea came from the fact that all the Doctor's companions are found in England. I 've a chance to expand on that, create a bigger world. [...] But destroying New York has its problems: it leaves heavy repercussions for the rest of Doctor Who history, because there's no reset button. I worry about that. Series Five is bound to have episodes set on modern-day Earth – and that might be hard to establish, because it 'd be a very wounded world. [...] These emails do influence things, definitely, because I'm thinking, no, destroying New York is a bad choice.
