I am so incredibly interested in this, but I have some questions.

Are there any Eldar left? Exodites? Exiles, maybe a lucky Farseer and her entourage?

Also what about the Cronz? Did the Dynasties fall, or did the Devourer even go after them, what with the lack of biomass for consumption and all?

EDIT: The Black Library, and the Dark Eldar of Commoragh I'm also curious about. 

EDIT (again): Nevermind. The wiki has all the info I could need.