Just a quick heads up, Microsoft is seeking feedback to help make the One better and have set up a dedicated site for this.
Seems to me that there is one thing they can do that we would all want… https://xbox.uservoice.com/forums/251650-console-accessories/suggestions/6028793-backwards-compatibility-for-wired-xbox-360-control
If this has already been spotted or noted, then I apologise for wasting your time…