This page details pre-release information and/or media for Phantasy Star IV: The End of the Millennium.
1st Person Dungeons#
Early in development it seems that the dungeons were going to be 1st person, like the original Phantasy Star. This was scrapped for overhead dungeons.
This image is evidently a mock-up. Note that all characters have the same status points, and they are fighting against enemies that differ drastically in the final version.