Thanks for your answers.
What I understand now is that Anroid 4.4.3 will be a "big fix update package" for the Nexus devices. Perfect !
Ok as usually the big name such as Cyanogen, Omni and PA will probably push it upstream.
wargreymon89: It is right that I ask something and I don't give any details or info about something in specific.
But it is an info topic, in my opinion, because everyone here can write what they know about this version of Android and the possibility to have it for LG G2.
I think for some people on XDA will be interesting to know more about the future of our device. I also hope that LG don't stop the development at Android 4.4.2 so maybe we can have Android 4.4.3 or even better Android 5.0. Who knows ?
In the meantime if you have some useuful information about this particular version of Android of our device, you can wrtie here and everyone will know what you know
It is simple !