Does the ‘Fixity of Death’ Extend to Thinking?

I cannot repent after death, or make moral progress; can I make intellectual progress post-mortem?  Maybe Ed Feser can answer this question along Thomistic lines, assuming the question has a sense clear enough to answer. Aquinas takes no position on it, at least not in the sections of Summa Contra Gentiles where he discusses the will‘s fixity after death. See SCG, Book Four, sections 92-95.