User blog comment:Mich, Michele & Kuhla/Future Units Preview/@comment-24349539-20160218035320/@comment-119.75.205.168-20160225054855

Apperently, the reason for these lores is that a legendary hero changed the timeline. Explaination: the fallen gods had another assistant, who is known as the Goddess of Fate. As assistant to fallen god Lucius, she predicted the ends of the 6 heroes to ensure no one defeats her master. The goddess of fate then attempted to attack elgaia, only to be stopped by a group of heroes chosen by Arceus and Huanglongmon (Arecus' assistant). As a result, the fate of the 6 heroes are changed, creating a new reality where Lucius did not betray Arceus and Arc ceased to exist, thus making the new lores.