It looks like everything is on schedule if Google really is aiming for the rumored October 15th announcement of the Nexus 5 and Android 4.4 KitKat. The device passed through the FCC last month, and now it has also passed through the Bluetooth Special Interest Group (SIG), which puts the device one step closer to being ready for its official release...
Source: http://www.phonearena.com/news/Nexus-5-passes-through-Bluetooth-SIG_id48208
Source: http://www.phonearena.com/news/Nexus-5-passes-through-Bluetooth-SIG_id48208