Probably never. (Source - This post
). And even if it does, its not like the bugs and issues will be magically fixed simply because its an official release. Your best bet would be to try the unofficial build.
LGE Google Nexus 4 16GB - AOSPA 4.5+ | NVidia Shield Tablet Wi-Fi 16GB - Stock
Device History -Nokia 5110 >> Nokia 8310 >> Nokia N-Gage QD >> Nokia 6681 >> Nokia N82 >> Nokia 5320 XM >> HTC Wildfire >> Samsung Galaxy SII