The Federal Communications Commission (FCC) is an independent US organizaton that regulates radio, television, wire and satellite. Where this fits into games is that, typically, wireless adapters and devices for consoles are filed for approval well ahead of release.
A recent FCC listing has revealed something called "Model 1683." The filing for Model 1683 suggests that it will come with "User Manual 1525", which is the "Xbox One and Kinect Sensor Product Manual" safety sheet that comes with the existing Xbox One.
This would suggest that a new version of the Xbox One would be released that contains a new wireless chip and that comes with the same safety information card that you currently get. However, the external photos of the device, as well as the User Manual 1525 contents for this version have been placed under lock and key until June 25th, which is the week after Microsoft's E3 2016 conference.
Interestingly, a second model - "Model 1682" has also been registered with the FCC by Microsoft. This one doesn't reference User Manual 1525, which would suggest that it could be a bigger change to the setup. Possibly an Xbox One Slim edition?
This comes hot on the heels of recent comments by head honcho Phil Spencer at MIcrosoft's Build 2016 event around the potential upgradable consoles. With this in mind, it could also be reasonable to think that these filings are something to do with a potential console upgrade path rather than a whole new console.
We'll have to wait and see. E3 is just around the corner, in July...