Yoshi P just dropped the news that 7.0 story is finished, and that Krile would play a bigger role.

I think it's safe to assume that they are tying the story from FFIV and FFV together.

From what I understand, Gilgamesh plays a big role in FFV, and there are even the 12 sealed legendary weapons. That I presume were lost and Gilgamesh got the task with retrieving them.

Also, not to mention that they are tying the next relic weapon behind the Hildebrand questline.

So once again, this seems to line up pretty well with my idea of Gilgamesh ulimate, and the background story of Gilgamesh being a creation of the Ancients that was supposed to guard the legendary weapons against evil.