4. Rivers Diary
Over the last few years that River has been present with both the 10th and 11th Doctor and it's clear that the journal she carries hold many secrets and adventures with The Doctor of future and past. Many of which she asks the Doctor about, 'Have we done the picnic at Asgard yet?' 'Have we done the Bone Meadows' etc? I for one would love to see these journeys take place. Plus it would be fantastic for continuities sake. For the sharpest Whovians out there you will already have noticed that the writers blessed us with one such episode. In River's first appearance in 'Silence in The Library' we see her ask a 'Pretty Boy' Doctor whether they have yet done 'The Crash of the Byzantium'. A couple of series' later we find River along with Matt Smith's Doctor and Amy Pond fighting the deadly Weeping Angels inside the ship she mentioned. For me, 'The Time of Angels/Flesh & Stone' was two of the best episodes in Matt Smith's term as The Doctor and I think a lot of it was down to River herself.