I'm really glad to hear this both for the Necromancer folks, and for Paizo. Under Erik's and James' (and Lisa's) leadership, Necro's stuff is a perfect fit.
At this point this is a rumor. One that I think would be very cool if it ends up being true. Guess we'll have to get Clark or Bill or Erik to say why they started talking about a partnership.
Uhm because Paizo figures they want to own a slight monopoly on Demonicon stuff? I mean I doubt they'll infringe Green Ronin but hey, having Orcus on board helps a lot.