So what events in the vast 40k universe would you like to see given some love by the Black Library?
There's a few events in Eldar history that I would like to see done...
Exodus
A novel following an individual as the Eldar empire begins to degenerate. What happens to the Eldar they knows as friends, how do they battle the temptations within? Would be cool to have them be the last eldar to depart on the last craftworld to leave.
Hunted
The tale of Arhra and Karandras. master and pupil, hunter becomes hunted. Preferably on a warp touched planet that messes with the mind.