There's a segment of the Who fanbase outraged because it's a woman. I'm not so much outraged as disappointed.
From Wiipedia: Jodie Auckland Whittaker (born 3 June 1982) is an English actress. She first came to prominence for her 2006 feature film debut Venus, for which she received British Independent Film Award and Satellite Award nominations. She was later praised for her roles in the cult science fiction film Attack the Block (2011), the Black Mirror episode "The Entire History of You" (2011), and as grieving mother Beth Latimer in Chris Chibnall's acclaimed TV series Broadchurch (2013–2017). On 16 July 2017, it was announced that Whittaker would become the Thirteenth (and first female) main incarnation of The Doctor in the popular TV series Doctor Who, taking over the role in the 2017 Christmas special episode "The Doctors". Her arrival in the series will coincide with Chibnall's, who will become Doctor Who's new showrunner.
Ms. Whittaker is a brave woman to take on the role.
The more I've thought about it, the more interested I am to see just how the show's writers are going to handle a female Doctor.
For example - Hugh Laurie's rude, jerky House. Would that have been a successful show with a woman playing House. Law and Order: Criminal Intent with Gorin and Ames. If the eccentric and rude Gorin had been played by a woman - would it have been as popular?
How will the Doctor's character change?
I'm reminded of the reaction to Donna Noble as played by Catherine Tate. Her characterization was criticized as being a "fish wife" because she yelled at the Doctor a lot. (God forbid a woman should yell at someone!)
The Doctor of course can yell all he wants...but now that "he" is a woman...will he?
The bad thing about the way the Brits do things is that the regeneration scene takes place in December for the Christmas special - then there's ANOTHER wait of 6 months or even longer before the new series starts! Weird way of doing things...