Originally Posted by
Daralii
A remastered version of Neo-Exdeath's theme is already in the files, unused, and Yoshida said previously that we could expect a Brutal Justice moment in O4. It's extremely likely that he'll show up in a savage-only phase.
Additionally, Omega told us very early on that combatants were grouped according to dimension, suggesting that FFV bosses were exclusive to Deltascape. O5-O11 will, presumably, be characters from 4 or 6-10. 3 was mostly stripmined for Crystal Tower, and we already know that the 24-man will be Return to Ivalice. 6 I'm unsure about because of how much of it was used for Stormblood's MSQ, but considering they threw in Exdeath, this seems like as good a time as any for Kefka.