Since this is a generational thing it would probably work perfectly to reboot Bond again after Craig´s eight films. I doubt that there is anyone on this board who was at the movies in 1962 when Connery started out as Bond. My first Bond film as an 8 year old was THE SPY WHO LOVED ME - and I have welcomed three new and younger Bonds since then. I definitely will welcome more of them if I have the chance. And the audience which will grow up with Craig as their first Bond will happily see the character resurrected with a new timeline. Doesn´t necessarily have to be "Bond begins" again - but just a new and younger Bond. Not too young, of course. (See my rant on the other thread)
Exactly.
Going the route of having Craig explore an aging Bond as he goes along in his tenure wouldn't force a full-on reboot once his tenure was over. All that would be necessary would be a reboot of the series in so much as a new, younger actor would be taking over. There wouldn't need to be another film that details how he got his licence to kill, or the Aston Martin, or any of those kind of "Bond Begins" elements that we saw in CR. The next Bond could pretty much do what Dalton did when he took over from Moore. That wasn't a full reboot where we took things all the way back to the beginning. Rather, Dalton was simply portraying an experienced James Bond, which is all the new actor would be asked to do in this case as well.