This powerful smartphone combines Qualcomm's Snapdragon 810 SoC with a QHD display and offers high-resolution cameras. Unfortunately, it will most likely appear only in Asia.
http://www.notebookcheck.net/HTC-Butterfly-3-leaks-via-CompuBench.141190.0.html
I'm typing this reply from my HTC Butterfly 2 which I got sent over to England from Hong Kong .. :)
The only thing that worries me about the B3 is battery life, The SD 810 and QHD screen won't go easy on a modest battery. And HTC phones aren't known for having amazing battery life as it is.