It's difficult to comment extensively, only because my initial reaction is that you framed that in terms of what you've proposed, and the list of questions and issues sounds like a pretty reasonable scope to start. It gives the breadth of bringing the ideas in.
I can't think, offhand, of any key group of stakeholders or experts who wouldn't be included in the categories that you've listed. Looking at our national-international commitments and our current activities is a very good way to ground it. I think one additional suggestion is to bring that same idea in as we bring the stakeholders in—What are your ideas? What are you doing—and bring in those two dimensions.
It seems like a pretty good thing. I can't think of anything to add or suggest, to be honest.