@Foxy:
Maybe Kaido's Commanders all have Mythical Zoans? Seeing how those guys on Kaido's Island called Caribou "Commander Gobble" we might see Commanders in Kaido's crew just like with Whitebeard. And if they have a Zoan-based crew, then Mythical Zoans would probably be reserved for the strongest members.
Human-Human Fruit: Cyclops Model (Could throw thunderbolts)
Human-Human Fruit: Gabriel Model (Sengoku has a religious figure for a Mythical Zoan, so this could work)
Human-Human Fruit: Genie Model (Another religious one, this would be cool)
Snake-Snake Fruit: Quetzalcoatl Model (This one seems very likely)
You know, 3 Mythical Human Devil Fruits sound like overkill, especially because one already exists (Sengoku). Not to mention that would make Chopper's standard Human fruit look bad in comparison.
I expect all Mythical Fruits to belong in different classes. We already have a legendary bird and a legendary human. There's still potential for a legendary dog (Cerberus), a legendary snake (Quetzacoatl), a legendary horse (Unicorn), a legendary salamander (fire salamander), the real Dragon Zoan…