Board Thread:Warhammer 40k General Discussion/@comment-24332685-20140111015135/@comment-24332685-20140112031627

@37: I think Dorn could be a likely candidate because all of the fans are under the impression he is dead so it would be a complete surprise and mind blowingly amazing, but to be honest any Primarch returning would be amazing. Based on that quote the Lion must be in some kind of coma since there is no mention of stasis and he is physically healed.

@ Lord Cowslayer:  I agree the return of the Primarchs would coincide with some massive calamity like those you mention, but I see it being more like the collapse for the astonomicon then anything.