So, I picked up the latest DWM and in the Ask Steven Moffat section there's some neat questions and responses:
Q: Was the barn Clara visits in Listen on Gallifrey, or a different planet? The sky didn't look burnt orange when we saw the outside of the barn in The Day of the Doctor, so does this mean its another planet?
A: In my head, he's in the wastelands of Gallifrey (where the burnt orange dims to a lovely blue.) Originally the script specified this, but I cut that, to give myself some wiggle room, should i ever need it. I wonder if this is a Time Lock question? Gallifrey and the events of the Time War are supposed to be held in a Time Lock, preventing the Doctor's return. However, in The Day of the Doctor, the Moment not only unlocked those events, she also allowed them to change. The Doctor doesn't realise it yet, but, as demonstrated in Listen, the Time Lock no longer holds.
Q: Do you think the Twelfth Doctor and Amy Pond would get along if they ever met?
A:
AMY: Doctor!!
The Doctor: Amy! It's me.
Amy: This is amazing! I never thought I'd see you again.
The Doctor: It's me, the Doctor.
Amy: I know it's you. Why do you keep saying its you?
The Doctor: I changed my face.
Amy: A bit I suppose.
The Doctor: I look completely different. I look older.
Amy: A bit older.
The Doctor: I'm a completely different Doctor!
Amy: A bit different.
The Doctor: Completely different.
Amy: Tell you whats good, though.
The Doctor: Oh, Fine, tell me! Tell me what's good, Pond!
Amy: You've managed to lose that accent.
Interesting that the Time lock is no longer in place, I mean it makes sense not to be, but I hope at some point they make reference to it.
And I imagine the meeting of the Twelfth and Amy might be a bit different to the above, but its nice to imagine that with Capaldi and Gillan.