Facebook is testing a “New Profiles Pictures” panel on the Requests page. Beneath a user’s pending requests, they’ll see rows of up to six friends, their new profile pictures, and when they updated the pictures. The test likely seeks to give users something to click after following a notification to the requests page and accepting or rejecting their requests.
Facebook has updated the Requests page several times in the past few months. It added friend suggestions of people connected to those whose requests you’ve accepted, as well as a “Delete all hidden requests” button for clearing friend requests users had previously differed using the new “Not Now” answer.
The new feature may be designed to provide a natural segue into other Facebook content instead of allowing users to become bored and leave the site. After answering all pending requests, the Requests page can be the most whitespace a user ever sees on Facebook. With so much compelling content to provide, it seems natural for Facebook to fill this space.