Migrating Itunes smartplaylists to Apple Music

I have read the articles explaining the general idea of migrating Itunes music files to Apple Music. I currently have a large library of music files residing in Itunes. However, one of the critical features I use most in Itunes is playlists, and especially smart playlists. If I migrate my Itunes library to Apple Music, especially when the migration is forced in the future, do all of my playlists move as well? Will Apple Music have playlists, smart playlists, and so on? On a related question, my Itunes catalog has a wealth of information like ratings, groupings, and so on. Will all of this content be available on Apple Music?