The Master's Not Alone!

IESB.net has had an interview with David Tennant and Russell T Davies which you can read here.

It's mostly all information we already know except this line from Russell:
...that final story becomes epic, almost like a fairytale. But, it's really intimate, at the same time. It's got funny little aliens with green spikey faces, running around...

So it would seem that The Master isn't alone in The End of Time, there are other aliens too!
Although, Davies could of course be lying. It wouldn't exactly be a first now, would it?