Originally Posted by
kaynide
Spoiler from FF4, I guess, but my final guess is Zenos will go full Zemus.
We specifically have not seen any iconic end-game FF4 major bosses, despite many opportunities, such as Omega. Coupled with the moon location, this screams the obvious. Zenos is a primal or psuedo primal like Iceheart.
For those not in the know:
In FF4, a wizard named "Zemus" controlled the guy we thought was the big bad until like, act 9 of 10. This Zemus character is destroyed only to morph into primal-esque creature.
Of note, in the wiki "In his megalomania, Zemus stops at nothing to enforce his plan, using whatever he deems necessary to make it happen. His will is so strong that it can exist independent of him and forge a new existence even without Zemus's original body." Sound familiar of our body-jumping boy Zenos.
I don't expect this to be the final boss...but maybe like the Thordan of the series to Zodiark's Nidhogg.