The next episode of Doctor Who is the highly anticipated Neil Gaiman episode.
This episode promises:
* "The Doctor repeats a line from 'The Eleventh Hour'.
* The Doctor has been doing something wrong for 700 years.
* The Cloister Bell makes a return.
* A desire Rory showed last week comes to fruition.
* The phrase "timey wimey" has some new competition.
* The RTD era is evoked more than once.
Gaiman had already stated that we will see the return of something we have not seen since Patrick Troughton's swansong The War Games (1969). From the trailer for this episode, it appears to be the box The Doctor heard knocking at the TARDIS door. This type of box was how the Second Doctor summoned the Time Lords at the end of The War Games. This also looks to be the return of at least one Ood, and with the return of the Ninth/Tenth Doctor TARDIS who knows what this all means.