User blog comment:DirgeOfCerberus111/Alternate Time-lines?/@comment-1986435-20110807035824/@comment-3341288-20110808084701

OK here is an idea. The Emperor showed up and united humanity with his LOYAL primarchs (who were never scattered maybe?). But the Eldar noticed this threat and a war was fought. This could result in the Imp. get its *** handed to it, possibly the shattering of humanity but continued guerilla war. Big E. could or not live or some or all primarchs continue to fight.