I don't know when Google will release next OS, whether it's 4.5 or 5.0 with whatever name they want, but one thing I know for 99% sure that soon as they release it, you will see posts like "i hate LG, they never update" or "this is my last LG phone" or "Sammy owners already have it but not us" ..... etc .......... kind of.
Official CM10.1 Nightly @ 1000MHz NOOKcolor
Offiical CM11 KK Nightly on Kindle Fire 1st-Gen
Rooted Kindle Fire HD 8.9" w/ Nova Launcher
Virgin JB 4.3 on Sony Xperia Tablet Z
Stock ROM KK 4.4.2 on LG-D800
Virgin Samsung Galaxy Tab 2 10.1 - LOST
Slimbean 8.1 on Galaxy S2 i777 - LOST