Moffat says that he will try to reach 100th anniversary. I don’t think that this is possible because a Time Lord can regenerate only 13 times. We are now in the Eleventh Doctor and we’re going to the Twelfth. How on Earth can Peter Capaldi or the person that he’ll play the Thirteenth Doctor stay on the show until 2063? Moffat may try to make a trick so the Doctor will regenerate in other 13 times. Who knows anyway?