This story arc for Catherine seems really intriguing. So I guess Catherine and Vartann will officially break up beforehand (at least I hope they show that beforehand, considering she'll be having a thing for that FBI agent), I'm not a big fan of Catherine/Vartann, but I was really glad, that Catherine finally ended up with someone who didn't either die on her or end up hurting her, and now she's going through another break up again; at least I can't help but feel that they're strongly implying that. I was just hoping she'd stay in a long-term relationship
. A part from that, I'm really looking forward to seeing this, even though it seems like Grissom won't be making an appearance (which really sucks, since they've always had a deep, dynamic relationship and it would make the most sense IMO for him to play a part in her story arc) I'm glad there's still a chance that Nick will be involved since he and Catherine are also really close.