Board Thread:Warhammer 40k General Discussion/@comment-65.29.225.205-20130427160705/@comment-8257990-20130428220055

It was specifically the Eldar's bliss that gave birth to Slaanesh however every single emotion let off by humans feeds one or more of the main, or lower Chaos Gods. So no, I do not believe that the humans will create another chaos entity, especially now consodering the Shadow of the Warp will begin to cover the entire Milky Way, casuing the Chaos Gods to lose their connections to the minds of mortal races.

However I do believe that eventually the Eldar will forge a temporary alliance with man, their wisom also supports this. They can either make alliances with the other races (including man who is currently one of the three strongest mortal races) or EVERYTHING will die in the milky way, nothing from the Chaos Gods to the Imperium to even the Cabal could possibly stand against the Tyranids alone.