Halo Xbox One is "the next chapter", according to Microsoft Store - rumour
The Microsoft Store has reportedly posted a few brief lines outlining the plot of the next Halo game for Xbox One, confirming it is a new story entry.
Although we weren't able to find the original, according to a screengrab posted by AllGamesBeta, the Microsoft Store had this to say regarding the new Halo game:
"In possession of a mysterious data chip, Petty Officer John-117, aka Master Chief, confronts a new battery of challenges and tests in a Herculean effort to stay alive in a galaxy where sentient life is mercilessly hunted. Pre-order the next chapter in the wildly popular Halo series designed exclusively for Xbox One."
Nobody has been really sure what the new Halo will be about because 343 Industries has said it's not Halo 5, although it is a legitimate entry int he story and will expand on the Reclaimer trilogy.
The new game was announced at E3 2013 and is coming to Microsoft's new console in 2014, and will run at 60 FPS.