A proper upgrade can be seen on the ultrawide camera. It's another unit of the same sensor that is used here as well, replacing the 1/2.0" imager in the old model's setup. The 200MP 1/1.4" sensor on the 85mm telephoto didn't really call for an upgrade so it's been kept the same. It's really more like three 'main' cameras on the back of this Ultra, joined by one of the better specced selfie cameras in the industry.
