I wouldn’t get my hopes up for a giga if I were you espeacilly if CF may spend elsewhere. Keep an eye out for a wing or flyer.
Thing is Fury was built because of the expanding market of the Carolinas, and was part of a massive investment by CF. KI hasn’t gotten that much out of Banshee (their biggest investment) and Mystic Timbers (one of the most expensive wooden coasters) return wise so a giga at a fairly stagnant park isn’t a wise decision.
It just seems like something built up by fans more than legitimate proof.