Doctor Who: 10 Dropped Plot Threads We'll Never Get The Answer To
9. So The Universe Remembers The Doctor Again?
After apparently dying at the end of season 6, the Doctor decided to keep a low profile and, starting with the season 7 premiere Asylum of the Daleks, he began removing himself from every database in the universe.
This was an intriguing idea that Moffat perhaps introduced to combat the criticism that the Time Lord was increasingly getting by on his reputation alone. When it came to the finale of the Eleventh Doctor's era The Time of the Doctor, however, this building subplot never really came to anything and the gathered enemies of the Doctor all remembered who he was again.
With the Twelfth Doctor's era, Moffat clearly decided to abandon this and create some new plots for Peter Capaldi. Which means we're left forever wondering if he had originally planned to do more with this concept before Matt Smith opted to leave.