Theories, Angels, Blessed Isles and new nations

After the release of the bios and Shadows and Fortune, I have a theory about where Kayle and Morgana will end up in the canon. Lucian knew of the ruined king's words, which his order must have gotten from somewhere, right? But what's the connection?

• The cornerstone of the theory is this: The Blessed Isles, now the Shadow Isles, is the only place I can recall seeing angels depicted. Looking at art from the Shadow Isles, there's loads of angel-statues.

So, my theory is that Kayle and Morgana hail from the Blessed Isles, or at least that they or their angelic people was in some way closely connected to the place.

Either before or after the Blessed Isles became the Shadow Isles they left and where involved in establishing the nations of Demacia and Noxus. Kayle brought her sternness and knowledge of holy metalwork to the Demacians and whatever Lucian's order is. Morgana brought her philosophy and knowledge of the dark arts to the Noxians and the Black Rose, settling the nation in the Immortal Bastion. Their sisterly rivalry set the precedent for enmity between the two nations.