Board Thread:Warhammer 40k General Discussion/@comment-24405075-20150318130307/@comment-8881468-20150325090523

Let us crush another theory. the two missing primarchs are a games workshop device to let players develop their own chapters with no ties to the first founding legions. one for traitors one for the loyals. no author will destroy that by making one show up....

afaik wasn' t fantasy' s Sigmar supposed to be a lost primarch until retconning ^^

GW would not use such a lame omega vault thing as a lost primarch. one of the surviving loyalists is more likely in that case than one of the 2 unknown ones.