Janelle has to win POV, period, if she is to stay. No one else would use it to take her off. Same with Howie.
Ivette WILL put up Howie and Janie. Now, if Janie was to get off and then April or Maggie went up that woud at least be interesting. Ivette should want to get rid of Maggie or April since she'd have more chances at the end with Howie or Janie. At least she would think that.
I think she'll play the FS line to the end, though.