A poster for the upcoming games Pokémon Ultra Sun and Ultra Moon has revealed some small details or hints about the titles. It is currently being used as advertising in Japan.
In it you can see that Lillie carries a Pokéball—she had aspired to be a trainer in the original Pokémon Sun & Moon games, but never truly had a Pokémon of her own. This suggests that she will have a somewhat different role this time around and may be a trainer herself now.
There are also several mysterious figures in the back which may be new looks for familiar characters or new ones entirely.