If the rumors play out as we are expecting, Google will be announcing the Nexus 5 and offering some additional details on Android 4.4
soon enough. Recent chatter suggests Google has an announcement planned for October 14th, but as we always see in these types of situations -- the leaks and rumors begin running in overdrive prior to the announcement. A few weeks earlier we saw mention of Android 4.4 having been spotted as build KRS74D
and judging from this latest leak, Google has had a few updates since.