Just a few days ago we had seen the leaked screen shots of the LG G3 running on the Android 5.0 Lollipop. And now the Lollipop ROM for the device has leaked.
The ROM as usual was uploaded on xda forum by a developer, and is available for download. You can try it out on your device. The ROM is in the early stages so it is very unstable. And also as a matter of fact the ROM has been developed for the F400S variant of the LG G3. So if you have enough guts to try out the ROM and risk bricking it, you can download it from the source link below. Also have a look at the video below. As it will guide you throughout the process.
Also you must have a basic idea about Android rooting and flashing ROMs and also recovering your device in case it is bricked. So if you feel confident enough you can try out, but make sure you have the same variant of the device for which the ROM has been developed. Also let us know the new features and the changes in the new Android 5.0 Lollipop you experience on the G3.