Xbox One Slim
It took the Xbox 360 nearly five years to bring a slimmer version of the original console to market. The redesign was the same prices as the Xbox Elite, and featured a built-in wi-fi adapter and a 250 GB hard drive. The current Xbox One is big, really big. Though not entirely aesthetically unappealing, the console would benefit from a redesign that maintains the clean lines while making the system significantly smaller.
With the Xbox One trailing the PS4 in sales the redesign could reinvigorate the market. The release of slim consoles allows for the use of smaller and often cheaper parts, allowing the consumer to get more bang for their buck. A slimmer Xbox that could feature either a 1 TB HDD or an elite controller for around the $400 price point would allow Xbox to regain a bit of ground not only from new adopters but also from early adopters looking for an upgrade.