Thanks for the replies, those are some good points and certainly made me think about my position. I am aware I do have an invested bias in this having grown up watching my recorded-from-TV-VHS 8th Doctor special over and over again (shut up I don't care how bad it was, he's brilliant) and being a teenager when the revival came back. The show does not, of course, exist solely for my pleasure. I still think it wouldn't be a bad idea to make new shows and characters rather than changing an existing one, although I can also see using an established character that is already beloved gives a much needed boost.