I'm thinking they might go for a gradual loss of humanity with Zoe. She's already killed one person - her "boyfriend", no less - and injured another. They're probably not the last victims, either, since I really doubt they'll kill off Zoe mid season. Might even do a Zoe vs Tamara at some point with Tamara being more human of the two.
What bothers me is the mid season finale, just as I was starting to care about the show. With bsg it was different - the mini hooked me immediately. Caprica was more of an acquired taste for me. At any rate, anyone know how long till the show resumes?