Word is out on the street that AMD is designing a 20nm version of its Xbox One APU for use in a future Xbox One Slim console. The new chip will be smaller and cooler and should be more cost-effective to manufacture. An exact timeline isn't known but this is probably something for the second half of 2015 if not later.
This will allow Microsoft to redesign the physical aspects of the Xbox One including all the massive cooling systems, and ship a smaller, quieter, “slim” version of its console. And of course all of these factors combined will likely also mean lower manufacturing costs, the savings of which might be passed onto consumers, meaning the future Xbox One Slim might be even cheaper than today’s consoles.
And of course we’re focusing on Microsoft’s own console, but the same technology and chip will very likely be used for a future slim version of the PlayStation 4, so Sony fans will also be catered to and get to enjoy the same benefits outlined above.