Buncha Christina and/or Iris plotlines that came to me last night that I've been desperately trying to remember until I was able to write them down.
1 - White Collar crossover, naturally, because there is no way we can't NOT have the honorable Lady Christina DeSouza and Neal Caffery not trade quips over a flying double-decker bus.
2 - equally, I think Peter Burke and Detective Inspector MacMillan could totally bond over the lament of the care and feeding of their respective criminals.
3 - Meanwhile, Christina totally needs to meet Iris Wildthyme.
4 - Even better, Christina needs to BECOME Iris Wildthyme. A little perception filter, a little vortex manipulation, and a little application of block-transfer computation to the bus, and presto.
5 - and then Iris!Christina can come back and kidnap DI MacMillan to be her companion.
And on an unrelated plot idea note,
6 - Someone needs to write the story where the Doctor that Ten met in The Next Doctor was Matt Smith's doctor.
7 - Or the story where Eleven gets tired of travelling for a while and settles in Britain/America in the past, knowing he can live a near-full life as Doctor Donald Mallard without too much fuss, because his former selves are already taking care of the Earth in that time.
8 - And while there, he reunites with Fitz (because Settiai's fic putting Fitz in DC with the NCIS crew for friends is too awesome for words) and the world is happy.
I need to go do homework now, bah.