If you are a member of the Xbox Preview program, you could get an invite to check out the new Windows 10 update for the Xbox One later this week. That's the word from a Microsoft representative on the official Xbox support forums.
The rep. who goes by the nickname "UrbanizedTree" on the Xbox forums, wrote:
"Just to break the radio silence, we're taking care of some last minute logistics and will get the invites out to Preview members soon. I can't promise any specific dates or times except to say we currently expect these to be sent this week, and are working hard to ensure it happens sooner than later."
Microsoft has already indicated that it plans to offer the first Windows 10 update invites to Xbox Preview members that have submitted the most feedback back to the company in the past. Anyone who gets an invite also has the option to decline to get the Windows 10 preview update. Microsoft plans to launch the final Windows 10 update for the Xbox One sometime in November.
Source: Xbox Forums