It would be great to be able to use a Youtube Playlist URL as sort of an RSS feed and auto update posts to be scheduled whenever new videos are added to the Youtube Playlist. New video posts could be set to draft or scheduled.
Youtube playlists have got an RSS feed which is currently already supported. (https://www.youtube.com/feeds/videos.xml?playlist_id=) followed by a playlist id id. You can grab it from the URL of the playlist.