After assembling all of her friends and family, Twilight Sparkle makes a shocking announcement, one that none of them were expecting. The group is surprise at the news, and quite curious. The problem is that, for some reason, Twilight does not seem willing to answer one of their biggest questions: "who?"
(Just a random one-shot idea I had. If you don't like being teased and hinted at, but not answered, you may want to skip this.)