One thing that i want HTC to improve before the unveiling of this phone is their marketing strategy. To be honest, i really hope this phone to be as successful as Samsung or Apple devices because they deserve it. HTC One's design is so revolutionary, i've seen many manufacturers implement this type of design on their tablets and they look better than most of Android tablets out there, except Sony Xperia and LG G Pad 8.3 of course. Maybe, they could make a huge promotion campaign on local television in many countries, like what Oppo, Samsung or Sony did with their devices. I also really hope that HTC patents the design of new HTC One because they deserve it.
Seriously, they would fly off the shelves and that set up would benefit carriers too so it would likely not cost HTC anywhere near as much as national TV advertisement that people with a DVR just skip anyway would.