Anthology is hard to do well...for me it is hit or miss most of the time. Doctor who kind of suffers from being on too long - so it can get repetitive. That's actually the problem with most long-running serials, they tend to repeat themselves after a while. Unless you can get new blood or really reboot the thing...which is often hard to do with a die-hard fandom. Fandom doesn't tend to like change all that much.

Let's face it there's only so many stories to tell and so many ways to tell them.

I honestly think - the smart thing to do is to shake up the format a little, and either go straight stand-a-lone or straight serial. Stand-a-lone might work best, because during the RT Davies era - I actually preferred his stand-a-lones. And as a show-runner, hire an innovative team of up and coming sci-fi writers to do stand-a-lone scripts, along with some recognized or well-known talents. Use the Doctor and maybe a companion as the through line. And go straight anthology.