Board Thread:Warhammer 40k General Discussion/@comment-14745711-20130906234048/@comment-25073042-20141124083254

ZiXIS wrote:

...and the Tyranids? Well... they are not gonna change their course, I guess, keep eating and devouring the worlds... and making their way to Terra... Not really: if Emps is gone, then the Astronomican is gone. And since the Astronomican is the thing that's attracting the nids to Terra, then they will stop bieng attracted ;)

As poer wiki page: http://warhammer40k.wikia.com/wiki/Astronomican#Tyranid_Attraction

"The Astronomican's potent psychic beacon, unbeknownst to the Imperium's Adepts, is what is drawing the Tyranids to threaten the Milky Way Galaxy and all of the Imperium of Man. It is also drawing them, inexorably and irresistibly, towards Terra itself."

Maybe they'll even start moving away from the galaxy, if there's something else (in neighbouring galaxies) that starts attracting them? Something that they currently can't see/feel because of the strength ot the Astronomican?