If he continues with Elias Longscript's 100-year-old reports, I'd like to learn more about Rac Conan cultures and practices. Like weddings, funerals, and maybe the marginalia of society. (Those that choose to live outside the mainstream like hermits or loners, rather than those who pursue illegal or immoral activities.)
Or maybe if it doesn't conflict with the current story, the scribe could make more comparisons between the Rac Conans and the lands and peoples he knows of "outside". Sort of a quick overview of what he might be able to relate to the Rac Conans of the world as it was 100 years ago.