For the last little while there has been this rumour going around that Peter Capaldi and Jenna Coleman have recorded an intro for the missing story Marco Polo.
The scene features the pair of them in front of a blackboard full of writing (now released as a promotional shot, though at the time of the rumour it hadn’t been publicly released) with both in character, the Doctor explaining to Clara and the audience about who Marco Polo was. The idea behind it being that an introduction featuring the Doctor might entice new series and younger viewers to purchase the story.
Then the rumour exploded with more details, Tennant and Smith had recorded intros together and separately, Dan Starkey had recorded an intro as Strax. A couple hours later those with sources back tracked on their info and said it was all for the new series. Well, most of it. The consensus remained that an intro for Marco had been recorded.
Fast forward to today. The BBC announces their new Doctor Who: Extra companion programme. Apparently the show will
“take a quick dip into the archive for every edition, reflecting on how Doctor Who’s history is echoed in this current series.”
And I immediately thought that this would be the perfect explanation for the blackboard and whatever scene was recorded. Maybe something in the new series will tie into Marco? It makes more sense to me than it being an intro to a previously missing story. I guess only time will tell though. Stay tuned, we only have to wait 12 weeks to know if that ‘Marco intro’ was for one of this Extra segments.