I am surprised (or should I really be?) that Craig seems to be regarded as the greatest actor ever and the only one to do Bond justice.
Which he is not. Craig - as his predecessors - has a certain skill set, yes. And his persona (brooding, violent, sardonic) brought out some of the characteristics that Connery showed first. Since the last decade invited more darkness Craig was even asked to underline that Bond was human, and he responded to that brilliantly.
But Craig is not the only actor who can do that. Nor is he an actor who can do everything. To cling to him as the best choice to move forward is absurd, especially for a role that stretches only so far and needs different approaches to stay interesting.
As for the question of what he wants to see in a new script - I´m guessing this is just the typical actor bullshit. Whenever an actor says this he/she does not want to do it and rather lays the blame at the writer. When, in fact, it is the actor´s wishes that a writer has to bow down to and incorporate them in the script. Believe me, so many times a great script gets muddled because an actor has outrageous ideas that throw everything off balance. Yet, the public keeps on adoring the actor because he/she is so bright and talented.