After the recent appearance of LG D820 aka Nexus 5 on FCC, the LTE version of the smartphone with D821 model number has been spotted on Bluetooth SIG.
The phone is listed as LTE device under the Blutooth SIG listing. The D820 model number, clearly suggests that D821 could very well be the model number of LG Nexus 5 LTE, while the LG D820 might be the model number of Nexus 5 HSPA+ version.
The only thing that is being revealed by this pic is that it confirms that the Nexus 5 will be releasing with Bluetooth 4.0.