- New Eidolons and 3 star forms: probably Lucifer, Freya, Zashiki Warashi, Muse and Snow White and 3 star forms of Bealdor and Cesela (according to this I think).
- Marriage System (i.e. expansion of the Guardian Knight): check here for some details.
- More Housing Features.
- New ways to customize character.
- More special quests and events.
- Eternia's Library: check here for some details.
- New Gaia Chronicles.
- Gaia's Sanctuary Hell Modes.
- Envoy's Path Revamp: see here for details.