The powerpoint presentation on this topic noted that creation of the Society for Ornithology would allow: "Unprecedented cooperation in ornithological research and conservation."
A truly omnibus Society for Ornithology should probably think about how to accommodate and interact with Partners in Flight, Ducks Unlimited, Pheasants Forever, and the many other conservation-related initiatives in existence in the Western Hemisphere. Professional societies can't be limited to their academic (research) interests. As such, I see the Society for Ornithology systematizing the NAOC and somehow extending its reach to include these other initiatives in a like manner. Whether that's possible or not, or how comprehensive it can be, is entirely unclear to me.