I've seen some speculation that ht enormal raid might be Ascian-related, because one of the signs in the background of the art looks like it might be derived from the sigil for Ultima in the Ivalice games--therefore, Altima. I don't really see it because I think it's a little too differently-stylized and asymmetrical (all the Ascian sigils were pretty symmetrical), but I wouldn't hate the turn, for two reasons:

1. It'd be them clearly doing different things with the Ascians,
And 2. If it is them, they're being very heavily de-emphasised.

That said, the thing I'm most excited about is one of my dumbest wishes coming true: for an expansion where the crafting and gathering content is WAY wilder than the combat content.

By the way, some 'other FF game' reference-spots for people: 'Solution Nine' is one of Zidane's Dyne skills in FFIX (EDIT: As I was beaten to), and the art for the FFXI raids was of the Shadow Lord, the antagonist of their base game; basically, their Gaius equivalent.