It appears that the last update to Android 4.2 Jelly Bean could arrive as soon as mid-February, then of course be followed by Android 5.0 Key Lime Pie in May. We've heard a few tips and seen reports of Android 4.2.2 Jelly Bean being found on a few Nexus 4 devices, but now it appears to also be on the Galaxy Nexus, Nexus 7, 10 and Google employee phones.
It looks like the 4.2.2 update will mainly be a security and bug fixing update, and we’ll get all the new goodies come 5.0 Key Lime Pie. Sources mention Bluetooth updates and improvements across Android, as well as a few important security bugs have been patched. This should arrive soon, but we’re already looking forward to Android 5.0 Key Lime Pie and the Google I/O event in May.