>>55485991>It happened once so it must be a patternFor the record, Enamorus only came about to bring the Therian Formes in line with the Four Celestial Animals of Feng Shui.
North - Genbu/Black Tortoise - Enamorus T
East - Seiryu/Azure Dragon - Thundurus T
South - Suzaku/Red Phoenix - Tornadus T
West - Byakko/White Tiger - Landorus T
Obviously the colours no longer correspond to the particular animal, but if you're looking at the Therians rather than the Incarnates, if anything, it begs the question why it wasn't a Quartet to begin with.
It wouldn't be on the same level as adding a Fourth Bird, Beast, Golem or Lake Fairy (to say nothing of Gen 6 and it's lack of a Trio besides XYZ, makes you wonder which Trio they'd insert to bolster the numbers, the birds are a safe bet of course).