“I’d like to see the two of them prior to their lives crossing in some time realm where they actually meet up without the Doctors or anything like that and they are rogue heroes. Kind of like what Star Trek did in the very beginning, going around and saving civilisations without trying to get too involved, but they always get involved! They always do the wrong thing but for the right reasons and succeed.
I think there would be a lot of standing off between the two of them to begin with, because they are two very, very strong characters. Very flirtatious! There would be a lot of innuendo going on. I think they would not do anything with each other for a long time because it would be too predictable. They have to be confined in a spaceship for a little while.”However, Barrowman hasn't been seen in the main show since Steven Moffat took charge, despite the calls of many fans to see him return for the 50th Anniversary, and he cautioned fans not to get their hopes up.
"It’s not up to us. That’s the one thing fans need to remember. Like when they ask on Twitter: ‘When are you going to do another series of Torchwood? When you you be working with the 11th Doctor?’ It’s not up to me… It’s up to the BBC. If they know enough that you want those characters back, they’re smart. But it has to be done right and done well. Of course, I’ll play Captain Jack at the drop of the hat if I’m asked to. No questions asked. But it’s up to [the BBC] to get the show off the ground. It’s down to financing and money.”What do you think? Would you like to see another Doctor Who spin-off to follow in the footsteps of Torchwood and The Sarah Jane Adventures, and are Captain Jack and River the right characters to take the helm should it happen?
[Source: Doctor Who TV]