According to Michael Ausiello at tvguide.com, now that they've been renewed, Sarah Connor is looking to add two new cast members.

In season two, they'll be adding "Becky, a hot teenaged hipster, and Catherine, an unusually earthy business bigwig in her early forties."

This in conjunction with rumors that we will not be getting a continuation of the painting campus prankster, does make me wonder if John is getting a new love interest, and for that matter what will happen with the old love interest. Then there's the explosive question of what will happen at the Prom.

In any case, I'll look forward to seeing what they do with Catherine. There's always room for one more woman in power. Although, we'll see what they mean by earthy.

Sources
http://www.tvguide.com/ask-ausiello/terminator-sarah-connor/080430-09