If someone missed it: Facebook is in "video attack mode". There's not only the autoplay feature for videos, there's also a rise in video views on Facebook, year over year, of - no typo - 785%. Facebook is also testing video ads - of course, why should they miss out on the biggest online advertising market?
It was clear that this will be accompanied by more motivation for page owners to post video. Facebook just announced video metrics. These will show you demographics of those who watched your video, the average length of video plays and also how many people watched 95% of the video. I know platforms that live off video and do not have these metrics easily at hand.