

I asked Steven for his thoughts on Peter Davison’s special The Five(ish) Doctors Reboot.
“I loved it. I love it, I’m in it! I’m the villain as far as I can see! [Laughs] Absolutely adorable. It was actually my idea to do that, I had bumped into Peter at a party and he said, ‘I’m going to do this little fan video about us all trying to get into the 50th. Do you mind and would you be in it?’ And I said I’ll give you a budget and a camera crew and some time and why don’t you make it for real? Make it for us? It solved a problem for me. I wanted all The Doctor’s properly involved, if they were willing, as best they could.
It maximises what you can do with Sylvester [McCoy] and Colin [Baker] and Peter because they’re not the same people were, all those years ago. You get to see Colin Baker playing Colin Baker which is much more fun that seeing him trying to do a performance that no longer suits him, frankly. And the same with Peter and the absolutely charming Sylvester McCoy, who is an absolute hero. It was brilliant, I love The Five(ish) Doctors Reboot, it was gorgeous.
Regarding Billie Piper in The Day of the Doctor Steven stated:
“I thought the story of Rose, which was beautiful, was done. I didn’t want to add to it, I didn’t feel qualified to add to it. That was always Russell’s [T Davies] story. The way Russell ended it in The End of Time was perfect. I didn’t want to stick another bit in. It would be wrong.
But we did want Billie Piper, one of the absolute heroes of Doctor Who, back in the show without interfering in the story of Rose Tyler. I think I might of spoiled something if I had done that. Billie represents the revival of Doctor Who, more than anyone else. It’s all about Billie, it’s her show for two years. It’s really startling watching The Runaway Bride and you’re going, ‘Where is she? Where is she? Where is the star of the show?’
On the 2013 Christmas Special, Moffat commented, “It’s a proper finale to Matt Smith,
it’s the story we’ve been telling since he put the bow tie on. A lot of
stuff we’ve left hanging, we tie up there. And it’s Trenzalore!” At a panel at the Official Doctor Who Celebration, including Matt Smith, Jenna Coleman and Steven, they revealed that the world “bubbly” will appear in the finale for The Eleventh Doctor.
Having seen Peter Capaldi in action as the next Doctor, how did that feel?
“We’ve only seen the tiniest moment. It’s just the beginning of a process really. Of course, he’s brilliant. And just seeing the energy and vitality that he brings to his performance, he works – he’s like Matt – he works, he’s a worker. And he’s an extraordinary vital performer. The man is not at all elderly in style, he leaps around the place probably more than any other Doctor in that first scene. But that’s not how he’s gonna play it, he’s in a state of post-regeneration madness. It’s something we’re still working on.
Thanks to BBC Worldwide
On the Christmas finale: "A lot of stuff we've left hanging, we tie up there."
The loose ends I want tied up all were all left untied within a few moments of each other:
1. Who said "Silince will fall" such that River Song could hear it?
2. Why was there what looked like solid rock when she opened the TARDIS doors?
3. Why did the TARDIS explode?
Are there any other loose ends? How you know it's a duck pond when there aren't any ducks in it? Whatever happened to the Ganger Doctor? How could River's psychic link ghost still be talking after Clara got scattered across eternity?
I'm not really interested. But those three I listed have been bugging me for years.
You need to go back and re-watch Matt's first season, then, because all three of those were answered.
1. Prisoner Zero. "Silence will fall" was an echo from Prisoner Zero's declaration in The Eleventh Hour.
2. The TARDIS had trapped River in a time loop to save her life. That's why she couldn't get out and saw only a wall when she opened the door.
3. The TARDIS exploded because of the cracks in time, which were caused by the TARDIS' explosion. It was a circular paradox. Closing the cracks in time by trapping himself on the other side, enabled the Doctor to escape that paradox and reset the universe such that the TARDIS never exploded.
The duck pond was also due to the time cracks, just like Amy's family. Just like nobody remembered the Dalek invasion. The cracks in time were responsible for all of that.
What happened to the Ganger Doctor? Likely he died drowning in acid. He sacrificed himself to save the rest of the heroes, but they didn't show his death in case someone wants to bring him back later.
River's psychic link–well, that was deliberately left hanging…in case someone wants to bring River back later.
Would have been interesting to see Rose with ten in the 50th, could have had a whole "where am I in your future?" character storyline. Shame.