With iOS 6.1 beta 4 expiring in only five days Apple will have no choice but to release a new beta, the GM, or the public version by then. Usually they don’t cut it so close as many expected an update weeks ago. It also turns out that the iOS 6 untethered jailbreak may be ready and the only thing stopping them is the imminent iOS update. While its not solid proof Pod2G tweeted today that wishes that Apple would release 6.1 now.
— pod2g (@pod2g) January 23, 2013
This combined with all the other good news is probably indication that they plan to release the jailbreak soon after the release of 6.1. Like we said eailer there is a good chance that will happen in the next few days so be prepared!