Sardonyx and Opal in the new trailer for Save the Light (http://www.ign.com/articles/2017/07/21/comic-con-2017-steven-universe-save-the-light-trailer-reveals-new-and-returning-characters)
artemispanthar.tumblr.com/post/163260298197/
the-world-of-steven-universe: Steven Universe: Save the Light