Quote Originally Posted by Tupsi View Post
It's called the Avatar, a type of Treant. Omega won't appear until they bring about Shinryu if they truly want to keep the FF feel and lore intact. (Omega was designed to seek out Shinryu, whether he existed or not in the game physically, that's always been his lore but almost every remake and later FF games introduced Shinryu either originally or in a remake.)

Pitty Diabolos got stuck in 4 man content though. Ruminious Omen would be fun in a 24 man type setup.
They might add special (hard mode) trials for these bosses like Diablos and Siren.
It happened with Ultima Weapon, so why not for them?