Little thought's that haven't been mentioned so much yet:

MSQ
I feel like we're sleeping on all the FF9 references now. The FF4 stuff is obvious, but 9 is littered everywhere.
Beatrix mentioned above
Memoria
Eidolons
The corrupted Contramemoria using the memoria (auracite) to summon Eidolons, bare a striking resemblance to allagan summoners. I.e. eidolons sealed in gemstones anyone?
And now I'm wondering about those robed figures. Could they have something else to do with summoners?


Raid
Totally called Lahabrea's true name being Hephaestus, or a transliteration at any rate, and my ancient greek isn't even that good.

Kinda miffed how they basically skipped over that second keyward in P6. What was her story and what was she merged with?
Hesperos had this whole vampire/castlevania thing going. I was hoping for other such allusions to perhaps other classic games.
Any ideas on possible references here or with P7 for that matter?