Filming for the Xmas special is continuing today but at Cathay’s Cemetery. The usual crowd are at the location and reporting via the #DWSR tag on twitter.
You can see the pictures taken so far below.
However @RyanFarrr has heard a few of the lines from the episode which are very interesting. You can see in one of the pictures that they are standing over a gravestone with the following line:
Vastra: "Where are you going?!" The Doctor: "To find her! To find Clara!"This is the episode where we will see the return of Madame Vastra, Jenny and Strax. The introduction of Jenna-Louise Coleman as the new companion Clara and the recently announced guest stars of Richard E Grant and Tom Ward.
Photos by: @RyanFarrr @StreetwiseLee @tlchimera
Original Source: Doctor Who Spoilers