I don't know if it's just the terrible image quality, but I can't even tell if there's really a breastplate there. The shoulders/rest of it looks same, if there's a heavy plate there it's not very big. The back does look slightly different I think, except for the wing/horn things.Tank will have a breastplate it looks like instead of having a bare chest (lol) and possibly a faceplate for the helmet instead of being a headband.
The horns and stuff kind of limit it to Ifrit? Ravana has them but not shaped like those, Behemoth has them but tanks already have two sets of Behemoth gear at this point, and he's not a primal. It's a shame they didn't do Ravana, his...skin? Carapace? Already looks like heavy armor, and his eyes/face would make a cool helm. The sword looks like one from one of the of the 50-60 dungeons, don't remember which,...Tank doesn't have a firey sword; I wonder if this means he has a swap model that will be called after another primal. I have no idea which primal a recolored Levi would be. At least I like the overall Levi model.
The MCH in the video's outfit was blue and white like the NIN's, so may not be recolored at all.