How to get rid of the entire 40K universe using the fluff,
The whole point of every secret mentioned in the 40K universe is I belive that GW has an escape goat for any event they realised this after they decided to erase the squats from imperial records without any background to what happened to them which annoys the hell out of some vets so now they can go dark eldar are anoying lets get rid of them how... slanesh has gotten into the webway bye bye dark eldar, blood angels oops they all fell to the red thirst/black rage and mephiston turned into a deamon and is now in the chaos deamos codex as a special charecter or a foot note in the fluff, most codexs/chapters could be removed from the fluff in this way even ultramarines could be removed by a tyranid infestation in there chapter house as all the tyranid spores that are laying dorment on macrag,
so heres 3 thing i think could happen if GW lost there minds but what do you all think? How could the tau disapear? What would happen to the chaos gods, i have my ideas but want to hear yours...