The jailbreak is based on checkm8, a permanent unpatchable bootrom exploit for the iPhone 4S to iPhone X that was recently released by security researcher axi0mX.
Earlier this weekend, @vangelis, one of the organizers of the 'Power Of Community' security conference in Korea, tweeted:
One of @qwertyoruiopz’s plans in #POC2019(Nov. 7~8) is to release a forever jailbreak. I hope his plan will go well.
Both axi0mX and qwertyoruiopz have retweeted the statement adding weight to its authenticity.
Please follow iClarified on Twitter, Facebook, Google+, or RSS for updates.