Doctor Who Series 10: 10 Things We Learned From The New Trailer
7. Gallifreyan Door?
At one point in the trailer, the Doctor is seen standing before a great wooden door with alien-looking metal circles adorning it. It's hard to make out, but the symbols on the door are heavily reminiscent of Gallifreyan. Which suggests that this scene could take place on Gallifrey, or at least that it is linked to the Time Lords in some way.
It's likely that this shot is from episode four, which is written by Doctor Foster's Mike Bartlett and we are pretty sure is called The Haunted Hub. David Suchet's the Landlord also appears in the episode. Some fans are theorising that the Landord is really a Time Lord - the clue's kind of in the name, isn't it? So maybe the door represents a sort of dimensional gateway to Gallifrey?
Or maybe it's just, you know, a door with some funny circles on it?