User blog comment:Brandon Rhea/Ad Tests on Fandom/@comment-3312380-20170428081542/@comment-20644-20170428153619

We're still doing some tests around this, but the featured wiki video player will most likely be auto-play. That's basically the only way to make sure that the ad that plays before the video is valuable enough to offset removing a lot of the other programmatic ads across the page. Without auto-play, we wouldn't be able to clean up the ads.

But based on the results of the tests we're running, we're pretty confident that overall page performance will improve even with auto-play because of the ads we'll be removing from the page. Pages that have featured wiki video players will also have even fewer ads than pages without video players, which will also help page performance.