Not going to read the whole thread but has anyone else notice how they seem to have two distinct mock ups? One image, a kind of three quarter view, shows what looks like a black band, the others more like white or silver.
The band isn't black in that pic, it's actually missing and is just a gap in the metal. The back casing is actually from this leak and someone just put the front glass in place. If you look at the pics you'll see that the bands are broken and missing in spots.
https://www.macrumors.com/2014/08/12/additional-photos-silver-iphone-6-rear-shell/