As for Wilson's comments about not being able to come up with a story and there being nothing left to do, I say--nay yell--"What about the continuation novels?!" There are plenty of stuff in there that can be used. Yes, some may need to be improved and others have been pilfered a bit in some way but that hasn't stopped EON before--see YOLT and TSWLM or TSWLM and Moonraker. It can be done!
I think the problem with using the continuation novels, apart from the occasional similarities to moments in the film series that you mention, is that many are very dated (I mean, try doing "Zero Minus Ten" without doing it as a period movie), which means that they'd either need to be (by and large) '80s- or '90s-set (and while I acknowledge that there's demand for "period Bond" onscreen, where's any call for that period to be just 20 years or so ago?), or altered to the point where they might just as well have not bothered paying for the film rights in the first place.
And, frankly, are the continuation novels a collection of excellent, clever and surprising plots with huge cinematic potential, or are they a collection of join-the-dots generic Bond outings of writing quality ranging from pretty darn good to pisspoor? Granted, there are some ideas in them that haven't been explored in the films (e.g. Blofeld, Jr., the kidnapping of Moneypenny), but, bluntly, I think they seemed barrel-scraping even at the time.
The most obvious choice from a commercial point of view (after the success of the Harry Potter films and STORMBREAKER) would be the Higson series, but these '30s- and '40s-set adventures would sit oddly next to the Craig timeline, and in any case by the time they were ready to adapt them for the screen it seems likely that the Young Bond (mini-)boom will have played itself out.
So I cling to my view that the screen Bond is all but dead.

