There was genuine excitement in the thread (I've just been reading it from the start) and optimism for about three pages before they released this:
https://youtube.com/watch?v=gm2PXshWC_0and the mood soured.
I'd be happier to see a version of Lucie Miller on screen played by Sheridan Smith, tbh. For a female doctor I'd want either Jessica Raine, Suranne Jones or Natalie Dormer (but I just fancy her) in the role. Sadly the first two have already appeared in the show, that didn't stop Capaldi, however.