Davies had sort of a Taika Waititi problem: If there is someone there to reign him in, then you can get a somewhat decent product. But if you just let them do what the fuck ever, you end up getting a mess that people don't like.
I think they'll probably sit on it for a bit. They'll probably want something more budget friendly, although I'm not confident the BBC will be able to fully understand why people didn't like the past few seasons of the show lol