This one was teased as part of the previous solicitation, along with the cover B option. We now have cover A along with a synopsis and all of the usual information.
Head on down below for it.
Writers: Stephanie Williams
Artist: Asia Simone
Synopsis: When a renowned Pegasus returns to Zephyr Heights for a high-flying tournament in his honor, everything seems to be going well…until his sudden disappearance! In this whodunnit, everypony has a different version of what actually happened, but only when they're fully pieced together can we unravel this mystery! Look for clues along with your favorite characters and figure out what happened to the vanishing Pegasus in this oversized one-shot!