Reflecting on a possible replacement, Keegan told media including Express.co.uk: “No one in mind, but there are so many great actresses out there now.
“Well, now they can, you know, step into the role and bring something completely different and exciting to the show.”
However, some fans think EastEnders actress Jacqueline Jossa could join Our Girl in the future with The Sun reporting in January how the soap star was in talks about signing up.
Also, some viewers have wondered if Turner could reprise her role in Our Girl.
Turner told OK! Magazine in 2019: “Well… you can never say never, I think. You just never know.
“I mean I’d love to see Molly Dawes again, but who knows!”
Our Girl season 4 concludes on BBC One tonight at 9pm