6.0 Story Speculations

[KageTokage]

They specifically stated there was multiple zones on the moon, so it's safe to assume the last zone is up there.

While are some caves in Mare Lamentorum, I'm expecting the final zone to be a deep dive into the depths of the moon where Zodiark is imprisoned...though I wouldn't mind something more outlandish and unexpected like an alternate dimension of sorts akin to what games like FF IX and X presented in their finale as opposed to a simple underground cavern.