It sounds to me like her agent has got wind of the start date of BB4 and decided to strike while the irons hot.
I hope i'm wrong but I don't see H on our screens for anything other than a review of this years BB. As far as BB contestants commenting on it H is way down the list now. I think she is seen as a bit of an idiot now. All the things that are so endearing about her we remember but that's because we are still talking about her. Most people I know when you mention her name pull a funny face and say something very nasty, and these are the same people who voted for her to win two years ago because they liked her. This fame game is a very fickle business!!!!