The following details were translated by Nintendo Everything...

Moonlight Battleground: new NPC ''Transcender of Reason'' shows up after clearing the game on the Fading Hill
allows you to have rematches against previous bosses
strength levels gets adjusted to the player's levels, so it will be challenging

four new artefacts:

1. Altar of the Gods - able to use skills while ignoring their CT, but the MP/EN consumed will raise by 50%. Note that the CT of Paradigm Drive can't be ignored
2. Rich Restaurant - able to buy all cooking items from any restaurants
3. Tachyon Laboratory - greatly raises movement speed on the world map 4. Heavens' Way - activating Setsuna system while using an item will not consume the item

Other additions:

added a new Config Menu, where you can change the difficulty level, speed of event skips, and more
changes battle presentation tempo
soups up some UI elements
changes locations for obtaining memories, monster status, weapon attack power, effects of the skill Spritnites, effects of artefacts and enhancement effects of equipment

QUELLE und TEXT: https://gonintendo.com/stories/300742-lost-sphear-more-information-about-the-day-one-update

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