Master Chief mouse to PC

So, Microsoft, are you trying to tell us something? In October, one month before the release of Halo: The Master Chief Collection, a Halo-themed computer mouse for PC will be launched. It's called Wireless Mobile Mouse 3500 Halo Limited Edition: The Master Chief (convenient name!) and does raise the question: why?

Are Microsoft trying to hint that Halo in one way or another is on it's way to PC again? In that case, when and what game? Unfortunately, we don't have any answers, but feel free to speculate away in the comments section below the picture.