Grinding Gear Games will likely discuss intentions with the Delve League.
After much teasing, Grinding Gear Games has confirmed when its next expansion for Path of Exile are going to Buy POE Currency be announced. You can anticipate hearing concerning this today at 12 PM PST. Interestingly, as well as releasing details to the 3.5.0 expansion, the developer will likely talk about its intentions with the current Delve League.
As for Delve, there can be a possibility that it might be rolled in to the main game. After all, a number of other mechanics, like Abyss and Breach, originated as Leagues before being implemented in to the main campaign. As for just what the next expansion could possibly be, maybe it’s an addition on the POE Currency main game that expands upon it further, like Fall of Oriath and War with the Atlas did.