FFXIV Lore Book: Would SE do it?

[Shougun]

I heard a library in game could be possible, that'd be awesome - but a lore book with supporting images would be amazing. Images not required but I think it could be nice, sort of encyclopedia.

Sil'dih and Ul'dah were created together and were not always enemies so that is probably why they are so close (from Belah'dia). Although you can learn from a side quest that there are a number of Ul'dah lies, so maybe we don't know (if one story can lie or mistell, what prevents the other?).

I believe the eighty sins is for eighty stairs. I think I can answer the other two but those are going to be guesses that I'm sure someone has an actual answer for lol (I vaguely remember lines in the game about it, but I kind of rushed through everything when 2.0 first came out . . . :P).