Well, knowing the WB it's altogether possible the series character is an FBI agent and a teenager.
It should be interesting, if nothing else, to see how similar the series is to the books. Will they keep the whole father/uncle deal? Will it have Ed, Sam, Heather and the other characters in there somewhere, even in a different capacity? Will her name even still be Gaia? Or will be the only similarity be that she's a girl without the 'fear gene'?
That reminds me... *checks Amazon* Ooh, #27 is out...