I'm sure everyone else has noticed this but I just noticed this and thought it was interesting: All of the named Ascians from 2.0 are named after characters from the Ivalice Alliance games (XII and the Tactics games).
Lahabrea, Nabriales, Pashtarot, Igeyorhm, and Emmeroloth are all named after Scions of Light from XII's mythos, who oppose the Scions of Darkness, the Espers the player can summon.
Altima is clearly based on Ultima, who was a Scion of Light before her fall from grace. Altima is also the name of the final boss from Tactics.
Elidibus is named after the man you find at the bottom of the Midlight's Deep in Tactics and fighting him as a Summoner will net you the Zodiark summon (called Zodiac in the original).
Spoiler
We've also seen Belias in the Summoner's Level 50 quest. I expect that the Ascian that was leading Tristan on was named Loghrif, after the Scion of Light that opposed Belias.
What do you guys think?
What do you think is the mean of naming the Ascians after the Scions of Light?