I'd forgotten that Chris Chibnall was taking over as Lead Writer/Exec Producer so the Broadchurch link to Jodie makes perfect sense. With people also talking about Phoebe and Olivia, I never saw the Chris link mentioned there either.
Jodie is a safe choice once they decided to go with the female Dr, I'll be interested to see her first series. I had wondered whether she would want to commit to a role like this with a young family but if she does 2 or hopefully the usual 3 series it should be good. You can do the whole alien enemy cycle again so stories will be there.