It isn't definitive, but it sounds like Google will be moving from Nexus to Pixel as its flagship Android product. This (potential) move is not just a name change, Pixel will no longer feature a pure or "vanilla" version of Android, but rather will have added features and apps on top of Android OS. As the owner of multiple Nexus devices, I would have to put this is the "well, that sucks" category. One of the great things about Nexus devices has been that they are speedy and not bogged down by unnecessary and generally unwanted bloatware. If I want to be made about TouchWiz slowing down my phone I'll just buy a Galaxy, thank you very much.
I really hope that the reports of Nexus's demise have been greatly exaggerated.