The addition of more books in the library made me come up with an idea. How about quests that start in library books? Not that you can actually be awarded the quest by reading a book, but rather some information in a book that will lead you to a quest.
For example, a passage in a book may read:
"Legend has it that a rare object of great value can be found in <some location>. There is a kran merchant often on the road to the bronze doors who knows of such an object. If you come across him, you may want to ask him about <x>." Then you get the quest when you ask the NPC about x rather than being able to get it the traditional way of "give me a quest".
For all I know this could already be ingame or in the works...I haven't been to the library lately.
But I thought I'd mention that idea here.