The Fourth Edition of AHistory amends and vastly expands (by about
40%) the work of Third Edition, continuing to incorporate the whole of
Doctor Who into a single timeline. All told, this Fourth Edition takes
about 2000 (!!!!!) full-length Doctor Who stories and dates them in a
single chronology -- starting with the Universe's origins and working
its way forward to the end of time.
Specifically, this Fourth Edition covers all Doctor Who TV episodes
through the end of the twelfth Doctor era starring Peter Capaldi (Twice
Upon a Time); all New Series Adventures up through Diamond Dogs; the
Big Finish audio range up through Static (#233); all Torchwood, The
Sarah Jane Adventures, K9 and Class episodes, novels and comics; the
Titan, IDW and Doctor Who Magazine comics; and a cornucopia of other
Doctor Who spin-off series (Jago & Litefoot, Counter-Measures and
more).
Volume 3 (of 3) of Ahistory Fourth Edition encompasses the Future
History section of the Doctor Who universe -- from the start of 2018
to its final, sputtering heat death.
All told, the three volumes of Ahistory Fourth Edition contain more
than a million words of hardcore geeky analysis on the world's
longest-running Sci-Fi series.