In the OVA, what Ikkyu is actually going to play is Neon Genesis Evangelion Episode 24.The Ode To Joy was just a sign of the angst and depression that is to come. Well, there should at least be one theory connecting it to Eva.
The Amnesiac Nancy from the TV series isn't the previously evil clone, but the "Good" Miss Deep.There was no way for Good Miss Deep to know that her "little sister" had brain damage and wouldn't try to kill Yomiko, yet she requested Yomiko to "take care of her." The whole thing was a Gambit Roulette; Miss Deep knew why the British Library wanted an Ijin body and mind, so she purposely made her brain "unavailable." Pretending to be the other clone was to protect Yomiko as much as possible.
The Gentleman Lives!His mind has now been divided between Junior, Anita, and Joker. The dog in the ending of RODTV was a psychic message to awaken Joker from Gentleman's essence floating about in the atmosphere. Anita and Junior have their free will, Joker probably doesn't.
Yomiko is a ContractorShe has all the traits common with contractors from Darker Than Black. Her ability, obviously, is her control of paper, and her renumeration is reading books. The I-jin were actually clones of historical figures, but exposure to Hell's gate mutated them, giving them various special powers, but at a price (which is why the glider guy is blind, Beethoven has the tubes running to him, and the fire-breathing Buddhist has an artificial heart.) Junior's tracking device included a localized artificial copy of the meteor fragment, drawing out his inherited powers when it was active, but deactivating when it was removed.
Anita is the Final Book of the Gentleman, given human form.Yes, it's a little late to be giving this one, after the series is over and the actual plot Jossed this quite thoroughly; but this was my theory at the time.
The Gentleman's Final Death warped space, time, and literature.As the British Library were about to resurrect The Gentleman; his powers were pushing London back in time, and bringing stories to life. After the Resurrection was stopped, his power mingled with the entire world. It wasn't enough to bring about Instrumentality, but books became Serious Business to everybody, London remains a magical and scientifically advanced dictatorship, and anyone with the right kind of will can walk into or out of stories.
There is a set of "copies" to the Gentleman Books.The Fantasy Library from the Read Or Dream manga, copies of every book ever made; even ones that used to be people. In Ten Years, Joker will send agents to check out each book and give up his own mind for the Gentleman. Ordinarily, this would be impossible for a normal human; but having a partial amount of the Gentleman's essence for 10 years made him a suitable host.
Readman is a bibliomancerHer obsession with books fuels her powers. It makes sense, in a wacky sort of way.
ROD takes place in the same canon as The Venture Bros.I say this simply because The Guild of Calamitous Intent is run by a guy who occasionally associates with The British Library (under a carefully-made alias of course) - "Jiggy Stardust"
Yomiko is Anita's motherAnita was created artificially using DNA samples taken from Paper Masters in the employ of the British Library. Two people who meet this criteria at the time this happened are Yomiko Readman and her mentor/lover/predecessor, Donny Nakajima.
The British Library is essentially the Illuminatithis may seem obvious, but the British Library is a shadowy secret organization controlled by the The Gentleman with plans to take over the world, their plan near the end of R.O.D The TV is pretty much the "New World Order" of various conspiracy theories
Mr. Carpenter, or Joker, and Wendy Earhart are sleeping with each other or are romantic interestsUnlike other members of the British Library who disbanded and were apparently arrested. Those two, Mr. Carpenter and Wendy, escape. They don't do what the usual evil organization does in their circumstances, change names, hide out, use their connections to get work elsewhere and/or hide out in the country side. Instead, Wendy and Joker decide to go to the country side and live in a cottage... together. They could've went anywhere with anyone else but those two decided to go together anyways. isn't that suspicious of them?
The events of Read or Die the TV were prompted by a shortage of tea.Cause, you know, Brits... and their tea.