Last one looks like a wallpaper, nice!
Oribos is awesome city for sure
Well, this is mostly copying and pasting, with some palette changes anyways.
it wont be the next raid , if anything it will be part of the last raid more likely a phase in the jailer fight much like the heart chamber was the part final phase of nzoth the lore suggests it in the same way , they put a cookie there story wise in that the arbiter is a key piece of the survival of ther shadowlands in the same way that the chamber of heart was critical to saving azeroth