Somebody on Reddit pointed out that the Unit Upgrade screen has been updated. No ANGEL placeholders. So here's the new one! If you saw the unit at 3:57 of the New Diplomatic Landscape Featurette, to the North East of Mandira. That would appear to be the Immortal. If you recall this was confirmed to be a Harmony/Purity unit. Which means we don't need to guess about this one any more! It would also meant that I may have been correct in assuming the Color Palettes of the Hybrid units. Keep an eye out for more Bronze/Copper/Orange units for Harmony/Purity. Purple/Gray for Supremacy/Harmony. And White/Cyan for Purity/Supremacy! Thank you to /u/Cassadore on Reddit.