If you want to find out even more concerning this, check out the experience's announcement page or read up on the POE Currency state patch notes here.

Noteworthy changes towards the game include:

    Dozens of mission variations: Earn reputation while completing increasingly difficult tasks for that Masters.
    Customizable hideouts: Create your own personalized town like a place to rest after battle or even a quiet location to craft new items.
    Upgrade your crafting benches: More crafting options, including the ability to modify sockets of corrupted items.
    New items and Mods: Craft new mods on to your items, Masters be vendors that sell you items which range from Skill Gems to Unique items.
    New support and skill gems: Overhauled Curses, new Skill Gems like Tornado Shot, that fire arrows in all directions upon impact.
    New challenge leagues: These leagues are self-contained economies and gives an opportunity for players to indicate their mastery of Path of Exile.
    Updates to your passive skill tree: Redesigned large portions in the Path of Exile Currency Passive Skill Tree - mostly working on the Witch, Shadow and outer Ranger areas.
    Revamped existing content: Updated many with the existing boss fights in Path of Exile. Encounters with Merveil, Brutus, Captain Fairgraves and also other bosses have already been made more intense and surprising.