In the cave drawing that stevens looking at in both versions, what I've noticed is a strange triangle flying across the sky. And if you remember in FR/LG/E when you went to capture deoxys you had to follow a triangle around the island until you could fight and capture him. Deoxys also comes from space and in the image that triangle is clearly falling from space, or shooting across the sky at the very least.Something also note worthy is that the 'triangle' is also the symbol for delta, and delta emerald was just trademarked. I do know however its highly unlikely gamefreak would make that game let alone change the main star rayquaza, to deoxys. Also the city from destiny deoxys is said to be just north of lillycove city,could that dark cloud be covering what could be a really cool new fresh city that we can explore and catch deoxys in a very satisfying post game? I doubt it, but I think it would be really cool! Its most likely linked to primal reversion. I also noticed that in both of the cave drawings there seems to be people flying everywhere If you look close, just something I thought I'd add since no one's mentioned it! Anyways, discuss!!