Insiders have said it's on the table. But since it wasn't part of the D23 five-year plan announcement, don't expect it until the currently announced ones are done, I would guess.
Meh, Dino never lived up to it's own expectation. A lesser experiential version of Alien Encounter where they rely on dark rooms with some flashing lights and sounds. With Indy there will actually be scenes to SEE inside of rolling around the corner into yet another pitch black room with nothing in it.