Images of the Fayth (Minor Spoilers)

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It's Shiva for sure. All entombed Fayth are shown half-transformed into their Aeons.

Here's Valefor:

And Ifrit:

Ixion:

Bahamut:

The Magus Sisters:

Yojimbo:

And (cue spooky music) Anima:

BTW, is there even an Aeon seen in the game that Yuna doesn't get? Although theoretically since there are hundreds of Fayth, so there also could be hundreds of Aeons.

EDIT:

On second thought, (SPOILER)Jecht isn't summoned by Yuna along with the Dark Aeons. But I doubt Maiyo_Yoem was refering to those.