According to Whitten in an interview with IGN, "If it's something that people are really excited about and want, we're going to make sure that we find the right way to bring it back."
The only obstacle is finding a way to do it without the copy protection the Xbox One would have had.
"Taking Family Sharing out of the launch window was not about ‘we're going to take our toys and go home' or something like that," Whitten explained. "It was just sort of the logistics of ‘how do we get this very, very clear request that people really want, that choice, and how do we make sure we can do an excellent job of that, get to launch, and then be able to build a bunch of great features?' In the future I think you're going to see the ways that we change how you discover, how you consume, share, play."
The Xbox One will be playable both at San Diego Comic Con next week and GamesCom 2013 in August.