What I mean is, raid achievements beyond the "binary" ones we get right now for just clearing the content.

Could we expect some "bonus" achievements for clearing raids under particular conditions in the future?

To give some random examples:
"Beat Titan EX with one of his adds up" (Titan and son)
"Beat Medusa with 3 or more Renalds alive" (Medusa and her three pals)
"Beat Twintania with everyone wearing a bikini" (Sunny days and fire breath)

I was just thinking, it might be a way to stretch out existing content, since I know the new coil is still months away. I don't pretend that these achievements should award anything too special. Maybe a recolor of a existing mount, A chocobo barding maybe, Perhaps some wierd glamor gear ("garb of the no-lifer" lol j/k)?