How about Bond birthplace, his parents, Aunt and Uncle. DO we use the same detail that Fleming did or we made a completely new background for him. DO his parent die in a climbing accident? Does Bond get expelled from Eton?
Bond should also have judo training sometime in high school and U
Also how about some of Bond skills and qualification like langua
For example is Bond specialize in hand to hand combat, a very skilled gunman, maybe a marksman? or a sniper? He knows multiple languages common against terrorism like Arabic, French, German, Chinese, etc
You must've missed this I postulated before:
Let's say he's in his early thirties, perhaps he was in the actual SBS/SAS/Royal Marines or even simply the Royal Navy, before he gets recruited to the Secret Service. Assuming we keep the fundamental foundation stone of his parents having been killed when he was younger, perhaps we could have him transplanted to live with his Aunt Charmian - not in Pett Bottom - but in the Middle East, making him a natural fit for the present day secret service with his fluency in Arabic and his grounded understanding of middle eastern culture. He's never been married, never been in a 'serious' relationship - he drinks, he doesn't smoke on a routine basis but can/will on a social/operational one, spends frequent hours in the gym to keep his fitness up (I'd imagine the physical requirements of the Double-Oh Section would be pretty extreme, their gym contract heavily subsidised).
I'd say his parents ARE killed - perhaps not in a climbing accident, but something similar and definitely NOT in a terrorism related accident like some might suggest. I'd say that Charmian could be a journalist or a photographer, or even just something as basic as an accountant or other sort of businesswoman. Bond is brought up as an EXPAT in the Middle East (Dubai - doesn't mean he needs to go there in his adventure), speaks fluent Arabic - and understands Middle Eastern culture - but if Charmian is an accountant, perhaps this is what pushes Bond into the economics direction that CT postulated in his discussion.
That said, he'd certainly speak fluent Arabic and, obviously, English - perhaps French too if we swing in the idea that his mother is French Swiss.
I wouldn't say Bond needs to attend Eton, there certainly wouldn't be an 'incident with the maid' anymore or it wouldn't be such a scandal, the secret service is no longer drawn from the countries starch collared elite, but from every walk of life. Bond, as an Expat, would certainly be priveleged enough and not consider himself working class - but he'd never consider himself upper class either - he's comfortably middle class.
Re: fighting style. I'd actually go with a more general gym oriented physical fitness - with weight lifting and plenty of cardio - if he's got a particular fighting style, he'd probably be adept at something such as Krav Magar (the Israeli martial art, perhaps spelled incorrectly) but capable at basic boxing which he might have done in the gym, though the martial art he would have learned from the marines and the SBS/SAS.