User blog comment:Brandon Rhea/Intro to Wiki Modernization/@comment-30547823-20170306225431/@comment-1824272-20170307060833

Video ads are not what's being added here, not by itself. It's featured videos at the top of articles, with an ad being preloaded before the video plays, like on YouTube.

According to the plan, videos will not show in pop-up windows, and they will be muted by default. However, the featured videos will push down the article content.