The Nexus 7 LTE remains on Android 4.4.3 KitKat. It’s still not clear if or when it will get Android 4.4.4 KitKat. Keep in mind, the device got Android 4.4.3 KitKat several weeks after its Nexus brethren did so it could be that the update is simply lagging. We’re not entirely sure at this point and if Google does have a plan for it, Google is not saying.
Asus’s other Nexus 7 model has 4.4.4 already, but we are uncertain if it will ever make it to the mobile version. Google Developers shows the Binaries for the 2013 Nexus 7 (KTU84L) showing Android 4.4.3 and the Wi-Fi only (KTU84P ) has 4.4.4 next to it. So it would seem there are no plans for the LTE version to get the update just yet.
Having said that, the LTE model might not even get 4.4.4 because it might not have the same bugs as the Wi-Fi only model had. If this is the case, then there is a good chance that the Nexus 7 LTE might skip the latest version and wait until Android L is released.
Some users have said they find it strange how Google has not made any sort of announcement as to why there is a lack of 4.4.4 support for Nexus 7 LTE, but when have you ever known Google to make an early announcement of a minor update before?
If this is the case, then you might have a bit of a wait because we do not expect to see Android L released until November, so if you have been experiencing a few issues with the LTE version of the Nexus 7, then you can either wait it out or go ahead and install the Android L Preview, although this could open up more problems.
Also See: 2015 Nexus 7 specs pondered if released