Evleaks has confirmed they are keeping the power button on the top. This phone looks nearly identical to the M7.
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Ugh, this is one time I hope EVleaks is wrong. Leaving that much bottom bezel just to leave room fo the HTC logo and keeping the top mounted power button (which I actually prefer) but moving it to the top right, which makes it even harder to reach if holding right-handed--makes absolutely no sense. A phone with that much bezel and a 5" display is going to be really tall.
Pulling boneheaded moves like this gives me zero confidence that HTC has any common sense and will be dumping the Ultrapixel camera.