I think most of those concepts sound like they would work really well, perhaps not the hunter though as I'd like to keep combat to a minimum. It could still work though. Having a warrior learning to adapt sounds like a really interesting plot line.
I think this is enough for me to really start working on this game world. I think my major influences on this game world are also going to come from some of my favorite books too, the Elfquest series, Shadowmarch, everything Neil Gaiman. I'll be trying to work in quite a few themes I think: mythology, Jungian psychology, paganism, eroticism.
The setting hasn't been decided on at all yet though. I'd like for the player characters to be from the real, modern world. They might believe in magic and faeries, or something else, or nothing at all, but have no actual experience with the supernatural. They're taken to the faerie land somehow. I think it will be reveled to them early on they they're essentially pawns in a game being played between the Seelie and Unseelie courts, but what that game is, what the goals are, and even who they're playing for will be completely unknown to them.
From there I think the question is are they to remain in that world for the entire game, or will they occasionally phase between worlds? Both sound interesting to me. Thoughts?