That would seriously so fantastic to read. She's witnessed everything Earth and her empire has faced throughout the past 92 years from the dissent leading up to rebellion to the proxies on Sanghelios. I love these sort of "in-universe" items, and should it come with the same quality and attention to detail Halsey's journal was, I would expect this to rank among the best sources of fiction in the Haloverse

Ugh...

We really need to stop putting good ideas into our heads.