Path of Exile 3.15 Expansion still has the currency system, moreover, it plays the same effect just as the Path of Exile and PoE: Ultimatum does. PoE currency revolves around various of different scrolls and orbs. Each PoE currency item serves a specific function in the crafting and enhancement of a character's equipment, or allowing restructuring of the character's passive skill tree in the case of the Orb of Regret.
Since Path of Exile's currency still plays a quite important role in-game, it will not be very easy to obtain this. However, you can get as much as you want by visiting EZNPC with spending a very limited expense.
Therefore, no matter what kind of changes will be claimed in Path of Exile, as long as the official site does not make an official statement, then everything still follows the original version.