When it comes to Captain Jack Harkmess and his appearances in Doctor Who thus far, we're sure we can all agree that his return has been long-overdue. The last episode to feature Jack was a short scene in David Tennant's, 10th Doctor swan song; The End Of Time. But could a recent video posted by John Barrowman lead way to the return of Jack this Christmas?

Well yes...and no... You see, John was recently in Cardiff to sign copies of his new book, Conjuror (co-written with his sister, Carole E. Barrowman), and at the end of the day, John posted a video to his Facebook page stating:

"I will be back in Cardiff in about a week and a half, but I'm not telling you what for... Shhh!"

So what could it be? As a DWO visitor, we rather suspect that you (like us) are hoping it will be to film scenes for the 2016 Doctor Who Christmas Special - and we may very well be right. Evidence to support the theory exists in the form of a recent interview with Doctor Who Production Designer, Michael Pickwoad, who stated that filming for Series 10 would start in May 2016. A week and a half from now and we'd still be quite comfortably in May.

Other possibilities are that John could be filming scenes for new Doctor Who spin-off 'Class' which is now well underway with the filming schedule. Of course, the other possibility is it could be something entirely different that John just so happens to be excited about.

Either way, whatever the reason, we would love to hear your thoughts on what you think will happen, and, if Jack is back, how would you like to see him return?

In the meantime, check out the video in the player, below:

+ The 2016 Doctor Who Christmas Special will air on Christmas Day, Time TBC.