Ending, plot discussion. Warning: Spoilers

[Thebard]

Look at the orb in the center... then slightly to the left... there's a blank gap where there are triangle/arrow-like runes pointing outward from where bahamut is attempting to be contained.. the arrow-like rune would be pointing ROUGHLY towards Althyk's symbol

Those "arrows" dont line up with the other symbols in that pic, however 6 points are visible, another would make 7 and that makes no sense at all. I will have to watch the vid again but for now I'd say its no clue at all.

[Zacas1]

well I said it would be pointing ROUGHLY at, not directly at Althyk's symbol. It still looks out of place compared to the others that come close to connecting together at the base... that spot is blank which would be odd on most summoning/binding ritual... but there'd be 8 arrows to make it even, one you can't see on the other side of the orb that should be pointing in the general direction of Menphina and Thaliak's symbol. If that one isn't there, it'd still be an incomplete binding circle but with two missing pieces... that's mostly what I was getting at, just a coincidence the missing arrow/cardinal symbol, that we can plainly see, happened to be pointing roughly at Althyk's symbol was just a side-note.