Headphones are stereo 99% of the time as they only have two speakers (Tritton tried making headphones with 6 speakers and failed, as the speakers were one, too small and sounded terrible, and two, being that close to your ear makes no difference). Surround comes from processing the audio signal. The Xbox One has a built in DSP (digital signal processors) for giving positional audio through stereo. So you can buy any stereo headset and get positional audio. "Surround" headphones are a marketing gimmick.
The TB XO Four and Seven both use a single line to the X1 controller. They are not "wireless" as they claim to be. You have to plug them in to the controller to get sound even if you aren't chatting.
However, not having an inline processor in headphones is a GOOD thing. When headsets do have inline DSPs, they gain static/hiss. Having the audio processed at the console is better. You can grab any pair of stereo headphones and test it out now. Either get an RCA to 3.5mm adapter and run it to the audio out on your TV, or get a cheap digital audio converter to plug in to the optical out of the Xbox One. Load up a game (shooters are easier to test with) and you will have positional audio without getting a "surround" headset.
I have Beyerdynamic DT990 Pros run through a Fiio digital audio converter, and the positional audio is better then any "gaming surround" headset Ive tried. The sound is also far more clear, with 0 hiss. The down side to this, is that the Xbox One can not set chat sound to come through speakers when a mic or headset is plugged in. You can only have chat through speakers when chatting with Kinect. Problem with that is some third party games don't use the Kinect for chat (like Call of Duty). It works in party chat, but not in game chat. So to have headphones and be able to chat in game, you have to get a set made for the Xbox One.
Please don't buy in to the "surround" marketing crap. For actual speakers and not headsets its important due to spacing and placement of the speakers. But when you have speakers right on your ears, good audio coding from game devs is all that is needed.
Steven, you clearly didn't pay attention. There can be no such thing as "surround sound" headsets, when there is only two speakers less than an inch from your ears. As far as console headsets go, you really can't go wrong with TB, and these look (and I'm sure will sound) amazing. I'm getting them on release, and that's not just because my OEM headset gave out on my XB1, lol.