I doubt this. I highly doubt this. We've still yet to see YT act on their supposed doing away with the Google+ merge required to post comments, and that was reported to be happening way back in the summer - no evidence, whatsoever, that it's happening.
YT standing in favor of fair use? That is absolutely laughable. They're not about to fork over a million dollars per video that violates copyright and risk lawsuits and other legal threats from the big corporations that call for the removal of their content, even if they did fall under fair use. And what about videos they've deleted for copyright that fell under fair use like YouTube Poops, Let's Plays, and reviews and such? What about entire channels that got nuked for multiple copyright strikes? Is YT going to magically restore all of that content? Doubtful.
Like with a lot of things, until I see evidence that YT is going to make good on their word about changes like this (and again, there's so far no evidence whatsoever that they're doing away with the Google+ merge), I'm dismissing this all as heresay and rumors.