I say: KATRINA
Why?: Well, partly wishful thinking.
Also, (while I know the previews are often misleading) here's my take:
1) I noticed the tension between Bill and Katrina in a preview shot.
2) Katrina is angry that Ereka was fired.
3) I suspect Katrina is not going to put forth much effort in the actual task.
4) Katrina is outspoken and I suspect it's her who crosses Carolyn when she (Katrina) is criticized in the board room.
Think of Carolyn's remark to (someone) in the preview: "I really haven't seen anything from you." What have we seen from Katrina? She was Project Manager in the apartment renovation/rental episode but she made some blunders and was bickering and criticizing and making excuses.
Yes, I think Versacorp loses next week.
And think about the remaining Protege members. Can you see any of these people being stupid enough to mouth off at or about Carolyn?
Heidi? (Hmmm) No.