I think she's more than likely to retire and live off her leftover campaign cash or start some foundation to keep her relevant. COH is not really that impressive when you figure she is not getting any super PAC helping her out. Both sides spent like $50M each last year in AZ.
If she's going to retire, why did she file to run for reelection?
The only person with the answer to that is the woman herself. I have maintained for a long time now that she is trying to suck money out of Very Serious People so she has something to live off of before she ends up flogging her inevitable book on Fox News and then starts crying about the 'lack of civility' in politics.