What is the likelihood that George RR Martin dies before finishing A Song of Ice and Fire?

In November 2023, Martin indicated in an interview with Bangcast that the number of pages he had written was the same as the year before, stating, "The main thing I'm actually writing, of course, is the same thing... I wish I could write as fast as [The Last Kingdom author Bernard Cornwell] but I'm 12 years late on this damn novel and I'm struggling with it. I have like 1,100 pages written but I still have hundreds more pages to go. It's a big mother of a book for whatever reason. Maybe I should've started writing smaller books when I began this but it's tough. That's the main thing that dominates most of my working life.[4][5]