I have a video upcoming about the new demo, but here’s a brief overview of the changes and features.

What’s New?

Larger map scenes are now possible, will be added in the full game.
New maps, there are multiple versions of each floor, improving replay value.
New UI on the map screen, removed the HP/MP values and moved them to the new status screen.
Class swapping added
MP cost for attacks now scales based on the level of the enemy.
Enemies now have an attack type associated with them, meaning they can deal more or less damage to different player classes. Note: This only affects the player characters, enemies will have their own weaknesses and strengths.
Added a “How To Play” page about the enemy damage types
New title screen.
Added some cutscenes (Art is still a placeholder)

What’s Changed?

Improved Hunger, Tiredness, and Stamina UI.
Fixed a bug where an NPC asking for an item wouldn’t work.
Bigger cursor on screens where you can select things.
Adjustments to enemy attacks.
MP values for each class adjusted.
Gaining strength by resting at camps now requires you to win a few fights.
Resting at the same camp on the same floor will not provide any bonuses or improvements.
Failing to escape from a battle will no longer allow you to retry an escape.
Fixed the prompt popping up again when re-entering a scene after using a Camp/Shop/etc.
Fixed Light and Dark skills being in the wrong slots when choosing them at the start of the game.
Fixed the floor numbering so Floor 9 is in-fact Floor 9 and not Floor 11. There is no Floor 11… Yet.