There is leaked copy of 4.4.2 for ATT with new a new bootloader
http://xdaforums.com/showthread.php?t=2624782&page=10
http://xdaforums.com/showthread.php?t=2624782&page=10
this is not to be flashed on the verizon variant, because you know somebody out there is going to want to try.
Sent from my sch-i545
You can flash back to 4.3 after you flash this leak. It doesn't trip the qfuse. But once the official release is out that might change but yeah people on VZW should not flash this.