Terry is definitely on my list! He has both the procedural background and the fantasy background with Camelot. :) I also wouldn't mind seeing Emilia try her hand at something a bit outside the norm for her. They both write for Jamie so well. :)
I loved Jane's work on Buffy and Firefly, but not so much on BSG. She's just not a good fit with Ron's vision, imho.
You don't want to see Anastasia as Susan? ;p I would love to see her work with her brother. Hopefully, they'll be a role for her at some point. Yes, I'm being optimistic about a series pick-up. :)