HTC's beautiful and (now) minimalism focused Sense 5.5 user interface update is scheduled to arrive soon (in fact, it has arrived on the HTC One with Android 4.3) with the upcoming HTC One Max phablet. Here are some leaked screenshots to get you started.
The new images have revealed that BlinkFeed can now be switched off (cheers and hoots). Additionally, the camera app will get two new features titled Panorama+ and Dual Capture. In the notifications toggle, a new option called "Do Not Disturb" has been added (we are waiting to find out more about it, but it will most probably be a type of Flight Mode implementation).