In a press release today Disney announced that they will be releasing a new movie next November titled Moana. The title character is a determined teenage girl, (likely) from Hawaii who sets out on an adventure. I think it would be very safe to say that we will see lots of toys including dolls for this upcoming movie.
You can read more about the movie at https://gma.yahoo.com/meet-moana-newest-disney-princess-161229376--abc-news-celebrities.html#.