I give her no more than 60 days!!!
But she could die next week. Or next year. Pancreatic cancer is not forgiving. 95% mortality rate if you have it.
She would have to hang on for 15 more months to beat Trump from naming her successor if he should lose the 2020 election.
Of course, if he wins a second term in 15 months, she would have to defy all odds to live and work to the end of those 4 years.
So my odds say that Trump will be nominating her successor. Eventually.