User blog comment:DirgeOfCerberus111/An Alternate Universe? Let the heresy begin!/@comment-3341288-20110906054715/@comment-3562230-20110906200022

Oh, I was thinking, if the Eldar never fell, Slaanesh would never be born and the Age of Strife would never happen either meaning Mankinds first empire also did not fall.

Of course, you could argue that the Age of Strife would still happen, but the Eldar avert the fall at the last second. So, Slaanesh is never born, but the first Empire of man is gone.