Till now, no one of the Chronic dev-team members has announce any ETA for Greenpois0n RC5, but all I have to say now, thanks Chronic dev-team for the hard work. As usual I will update you once more information comes-in.
UPDATE: Pod2g, the hacker behind the exploit used on Greenpois0n has just announced that the Chronic dev-team has just one small bug to release Greenpois0n untethered jailbreak for all iOS devices, precisely, the wifi icon doesn’t show up after jailbreak with Greenpois0n.
A small bug remains, the wifi icon don’t show up. But it’s there. As you see, we need some more time to fix and pack everything.