Microsoft will release a new Xbox One controller with a built-in headphone port sometime "after June 2015," according to a product listing on the official Xbox support site that has since been amended to remove the reference.
The headphone port will sit on the bottom of the controller, as you can see in the image below from previous version of the "Get to know your Xbox One Wireless Controller" support page. Labeled as 16 in the image, the 3.5 mm port will sit to the left of the current Xbox One controller's expansion port, where players plug in their headsets.
Though the modified Xbox One wireless controller hasn't been officially unveiled, the June date might offer a clue about when Microsoft plans to debut it. Microsoft will hold its E3 2015 briefing on Monday, June 15.
We've contacted Microsoft for more information on the controller and will update this article with more information as we receive it.
Xbox One consoles ship with a headset, though that wasn't Microsoft's original plan. Released within weeks of the Xbox One, Sony's PlayStation 4 controller, the DualShock 4, includes a 3.5 mm headphone port. The PS4 includes a mono earbud, though the universal port accepts a wide range of third-party headsets.
The Xbox One wireless controller launched alongside the console in November 2013. In June 2015, Microsoft released Windows-compatible drivers for the hardware, which needs to be tethered to a PC with a USB cable. Earlier this year, Microsoft said that a wireless adapter for PC is coming later this year.
Update: A Microsoft representative responded saying, "the team is focused on showcasing more games and experiences at E3 but has nothing else to share at the moment."Say hello to the (alleged) new Xbox One controller