The Little Book of Fate (Warriors' Gate and Beyond).

Books  It would be quite disagreeable for the anniversary year to pass by without some new Eighth Doctor prose but it is a surprise to find it at the back of Stephen Gallagher's expanded TARGET novelisation of Warrior's Gate.  The Doctor is called to Cumbria by an interstellar distress call which leads him to a travelling carnival (not that one) and some familiar faces which bring the story of Warrior's Gate full circle (sorry) (I'll leave the spoilers in the "Placement" section below).  We're in the territory of a Brief Encounter or Short Trip in which a later Doctor becomes embroiled in elements from an early tv adventure.  Gallagher captures this Doctor very well in the tiny wordage within which he's working and the final few lines have a big emotional punch.  In an ideal timeline, Gallagher would already have a commission for a full Eighth Doctor novel that follows on from this.

Placement:  Hoo-kay.  The Doctor's travelling alone and with the mention of where he'd found his frock coat and despite its shabbiness we could assume its in during the Greenpeace gap.  But then we find that this is supposed to be Romana's first encounter with the Doctor in this incarnation and also that she's recently regenerated.  Even taking into account the idea that they're meeting in the wrong order, I'm having a braingasm as to how this fits with Shadows of Avalon, Happy Endings, The Apocalypse Element, the Shada rerun and a whole bunch of other things, especially since the description suggests she's now in the Trey incarnation played by Juliet Landau (berets are cool).  

In the end none of this matters, probably.  As with anything related to continuity in Doctor Who there'll be a perfectly logical explanation which happens off page/speaker/screen.  As the TARDIS wikia says, "there were multiple contradictory accounts of how Romana became the President" and that's true of most of the key moments established outside the television series (and indeed within the television series).  It's heavily suggested here that it's also supposed to be this Doctor's first encounter with the results of the Time War and implies at the end that he's going to be become involved (helping out where he can) even though he's wearing the wrong clothes.  So let's just squint and put it at the start of the Time War section on the checklist and assume that has something to do with it (unless I hear otherwise!).