Today, LG G Flex (Model: LG D958) was listed on Bluetooth SIG website. According to the Bluetooth SIG Filing, the LG D958 features bluetooth 4.0 technology and the Geographic Availability of the LG D958 is ASIA.
It seems that LG will release this LG G Flex (LG D958) in Hongkong,Taiwan,Indonesian,SEA and other Asian countries sometime in not long future.
Source. Bluetooth SIG