So "HE" is in the game now...(GBA version SPOILERS)

[qwertysaur]

Putting Enuo in the game isn't necessarily a bad idea, but the way it was executed in the GBA port was terribly lazy. They were clearly just looking for anything to use as an extra super-boss, just like how they based an alternate form of the Emperor on a slightly different-looking piece of concept art for FFII, and ripped the Easy Type sprite of Zeromus for the inexplicable "Zeromus EG" for FFIV.

Enuo is found at the end of the new dungeon as a superboss. You get the Necromancer Job for beating him, not a bad deal at all

Except, once you've beaten him, you have nothing to use the Necromancer job on.

There is also the Cloister of the Dead, Neo Shinryu and Omega MKII