I can't imagine she is terribly happy in her role. Then again, i don't really have a clue what she is doing beyond her title. Whatever it is I really doubt she wants to do it for very long. I think she is most likely to quit during this term. I can't see her getting fired. This seems to be a job that Trump doesn't pay much mind. If she doesn't quit and Trump has another opening that needs filling (like Commerce) and there is no one on TV at the time for him to nominate, he may think of her as a loyal employee of his who has a decent rack and will introduce him to 22 year old, physically fit, aspiring trophy wives.
All guesses on my part but if I turn out to be right I'll start my own Infowars type website touting my political acumen based on this one prediction.