I know a guy who's in tight with HTC. He spent a lot of time with them in CES (as he does every year) and I asked him for any info on this years forthcoming flagship device. Nothing earth shattering but the lack of a rear ultrapixel camera and he says it will have a smaller footprint than the M8! The focus this year is on improved battery life and improved performance. "latest rumor is a snapdragon 810 processor, 3GB of RAM, 5 inch display, UltraPixel camera selfie cam and 20 MP camera on back"