I remember some plot point in the 2.X series about another weapon appearing but I guess that was long forgotten (citation?). But it would be great to have another mechanic mashup fight (like Thordan) that reuses mechanics from the 8 primals we have thus far (similar to the original 3 with the first plot point, not named due to spoilers). Seems to be a waste to not have any of those again, although the newer primals (Ravana) seem to to have no problem taking a bunch of the mechanics from the older ones.