Could it possibly atlus intended to add something in persona 3? Or was it for persona 3 remake or a foreshadowing to persona 3 dancing moon bight? What do you think about such thing for persona 5?
It's also highly likely that this was just used for beta testing and may have no extra meaning~
But hey, who knows~
That's just a theory, a Wet Theory~
Thanks for watching~
I think it was used to test the engine. It is common to make a test room, or remake of a place from a earlier game to make sure that a certain feature/collision detection works.
A PS2 engine being used for a PS3/PS4 game... No. It couldn't work. It might be a new version that uses the same name, but it couldn't be the same as the ones used in P3/P4.
Yeah P5 runs on a new engine. P3 and 4 shared an engine, though.
This map looks like a copy/paste of the P3 one, considering it seems to have loading zones for the door and stairs still there.
Though I've not seen or played the non-portable versions of P3. Were the models always that detailed?