The line of thought is, you drawing a connection from Outsiders to naagloshi to necromancy-powered Black Court vampires seems to me to be lumping three disparate things into one without evidence enough to do so.
Welcome to the C.I.A. Dr. Holmes. The evidence is all there already. I can continually point it out, though if the circumstances are agreed upon is an entirely other matter.
1. Sherlock Holmes was not a Dr. . Watson was the Dr. Also: The person Holmes' character was based upon was. Which is quite funny, since House was somewhat based upon Holmes.
2. Trying to push Outsiders, Naagloshii, possibly Reds and Blampires into one group is kinda silly. What is this? Scott Pilgrim vs. The World? It's perfectly fine to have multiple actors with their own agendas in this. Makes things a lot more interesting. If it ends up Harry vs. everyone else and he's also expected to win... well... the story would suck.