I seen this earlier and im sort of torn.. Seeing what would be lost when going to a pure Google OS....and how nice Sense 5 is with the IR Blaster which I use ALOT...Blinkfeed which I use daily,,,etc, I dont think it would be for me. Granted I came to the One from a Galaxy Nexus, the only things I liked about having a Nexus was Google Wallet, and the HUGE dev community lol.. I would say updates straight from Google but Verizon wasnt doing that...
Now something like a dual boot depending on the..well mood I was in...would spark my interest but otherwise im content with Sense 5..Im sure this would appeal to alot of people though and more power to them!!