According to the official Xbox One website from Microsoft, one of the Xbox One's confirmed launch titles, Call of Duty: Ghosts, will be releasing on November 5, 2013.
It could simply be an error on Microsoft's official site (I mean, they have made errors before, right?), so take it with a grain of salt. Check out the screenshot of the site, below, and judge for yourself.
The Canadian Microsoft site also has the release date listed for November 5.
Microsoft has confirmed that the Xbox One will be released in November, and that Call of Duty: Ghosts is a launch title. But, again, it could just be an error; take it with a grain of salt.