Here are some more comments from Matt Smith whether he is leaving anytime soon.
"I just sort of take each year as it comes really. We've got all the rest of this year to get through and then we'll just sit down and review it from there and see where it goes. But I love playing the part and I love working with (writer) Steven Moffat...I think there will need to be a younger, cooler person than me - or maybe an older, cooler person, who knows? But I don't think I'll be doing it as long as Mr. Baker."