Well, OK, who else do we have left to do?
I'd say that the normal people from FSN (Ayako, the track girls etc.) should just be humans (that doesn't mean they can't be involved, of course), and Saber I'm not sure about. Ilya should presumably be related to Shirou, but I'm not sure how. I'm also not sure where the guys fit into this, in particular Archer (since he's canonically another version of Shirou, I dunno how that would translate to this).
Also, I think we should try to flesh out the existing characters a bit more, whilst we think about what race to make the rest.