Don't know if anybody's posted this as it's from June, but Boyd says,
“He is a middle-aged man, a middle-aged spy, and that’s one of the things that interests me. The as-yet-untitled novel is set in 1969, with Bond aged 45. I’m a realistic novelist and what interests me about Bond is the human being. There will be no mountains filled with atom bombs or global plagues, no gadgets, no superpowers or preposterous enemies - there will be an entirely believable psychopath, not a preposterous psychopath. And similarly with love affairs - in my novel they will be entirely believable.”
Skyfall for me was the best fim in the series for lots of reasons but mostly because so much of Bond is revealed to us. A book doing the same would be fantastic.