So seconding that though! I'd love to see some of the classic companions too. There's so much potential there!!
I'm pretty sure it's going to be a festival of walking down memory lane. After all, Moffat is the biggest fan ever, and he loves nothing more than to cram in AS MUCH AS HUMANLY POSSIBLE. :D

I'm just as excited about Noel Clarke!
Well I\ve never seen Mr Cumberbatch in anything besides Sherlock, so I don't know how excited I am... (OK, so I'm excited for the Hobbit, but that's different. HELLO SMAUG!) But yeah, Noel Clark. This is all SO COOL!