I believe the strategy project was an experiment that is no more. The new way to move forward is the same as the old, on the meta wiki. On the other hand, while meta is a place that many people have put project proposals over the years none of those has ever been taken seriously. My plan at least is still to consider the ins and outs of the proposal and then create a professional looking document that the WMF can consider. Most of my somewhat limited experience with what goes in and out of the WMF involves white papers, so they may actually be more receptive to that in the end.
Also - hopefully we can discuss more of this project than just the citation keys. It sure is an important point, but it's hardly the most important ;-) That's my idea of something that will evolve out of the project once it gets started. I haven't really seen many people take an interest in some of the aspects of the proposal that are likely to be most important. These are related to the scope of the general vision, how the project will integrate with the other WMF projects, how the project will mature on its own, and more detailed work on exactly what kind of a technical infrastructure we think we are going to need. Basically, I'm thinking that it needs to be a full on grant proposal, because ultimately the WMF will want to seek funds for it and the kinds of questions that go into a grant proposal are the ones they are going to be asking. Also - a lot more work needs to be done in order to pick a candidate list of names from which the final name is likely to emerge.
As far as a proposal on the strategy wiki goes, I think it's at least a good place to take notes, if not to write an actual proposal. And maybe it doesn't matter where we write the proposal, as long as it's really good. To that end we can consider Sam's recent contribution of [[m:WikiBibliography]], which is along the correct lines.
Brian