Talk:Semblances and your OC - A Guide/@comment-25658772-20141111031227/@comment-8182065-20141111053647

To quote the article, "Characters at this time, do NOT need a Semblance to be known, or included to be Accepted."

So that would be a yes, and a perfect canon example of this would be Jaune; he's still training with Pyrrha to figure out his Semblance (we know what it is, but they don't yet. Dramatic irony).