From the suggestions so far, I'm getting the feeling that your campaign is set in Chicago.
I would suggest this is a great time to introduce new power players that will probably come into play later on.
RC - Ariana is good, although I'd personally branch out. Since it's an advancement function, you'll certainly need someone higher up the food chain, since the way I understand it, the newly advanced needs to feed on blood from a higher up.
WC - You'll probably need a head of a local house or one of their heirs. Maybe even a daughter of the King.
BC - If there are any in the region and have ties to the RC like Mavra did with Bianca, I'd throw them in just for the creepy factor.
JC - A lower functionary. I don't imagine JC has much of a power base in the States.
Fae (Summer/Winter/Spring/Autumn as applicable) - A Sidhe or a Knight. Maybe even one of the Ladies
White Council - Since at 7 months before Changes the war is still in full effect, I would probably skip this one
Freeholding Lords - Any of the Freeholding lords you want to introduce into your campaign. By Freeholding, I mean Drakul, Marcone, etc.
The other Gods - Representatives of Vadderung, Ra, Shiva, etc. Maybe one or two forgotten gods similar to how they did things in American Gods.
Denarian - If you can work up a reason why one would be there, go for it. They seem to be the type who would only go if it suited their goals to do so.
