No one has 4.1.4 that I know of, as it doesn't exist. 4.1.2 is the newest available unless I missed something, by available I mean it is the newest with source available. So that would explain why we don't have 4.1.4 .
When will the VZW GN get 4.2? The real answer is no one knows. It will come when Verizon is ready to put it out. I don't think anyone knows when 4.2 is coming out for the other Nexus devices, much less be able to know when Verizon is going to get around to releasing theirs. I would be surprised if Verizon released anything soon though, my guess would be sometime 2013.
Lol calm down 4.2 hasn't even been officially announced yet. I guarantee you this though; devs will have it out before Verizon ever decides to push the update