Google is testing yet another format for its Sitelinks for both the organic search results and the search ads. These are Sitelinks in a vertical format with a line going from the top down.
Frank Sandtmann, a German based SEO consultant, emailed me these screen shots. Here is a screenshot of the organic listings (click to enlarge):
Here it is of the Google Ads (click to enlarge):
So I guess Google is getting into the Sitelinks user interface testing again.
Forum discussion at Twitter.