Thanks for sharing this with us! I liked it a lot, very detailed without feeling too heavy, it's a great recap to prepare for Endwalker
One thing though, about Travanchet. My understanding was that he was a black masked Ascian, not one of the Convocation. I had posted about this here and some helpful fellows explained that he had been ruled out as a black mask, and that this was confirmed by the writers? Somebody can confirm that I'm sure.
I finally got some loose point about Eureka thanks to you, as I was too lazy to look them up by myself too!
Spoilers for 5.X:
Otherwise, looking at your list for what's to come in the game, I sure hope Ascians transition to a more minor role in FFXIV's future. With the end of the Hydealyn vs Zodiark. I'm sure they wil make a decent story from Fandaniel the Ascian on the loose, but I don't want each subsequent stories to be "well well well if it isn't an ascian plot device!", as Eden's finale was such a disappointment for me.