Y’know, assuming Ultra Beasts aren’t actually Pokémon (though what they would be, I have no idea), this might be the first trailer for Pokémon Sun and Moon that hasn’t featured any new Pokémon, unless I’m going senile.
The new trailer showcases UB-02 in its two version exclusive forms: UB-02 Absorbtion for Sun, and UB-02 Beauty for Moon. The descriptions on the Pokémon website have this to say:
The Ultra Beast known as UB-02 Absorption appears in Pokémon Sun, and the extent of its strength is unknown. Its entire body is covered with bulging, powerful muscles. The full force of a punch powered by these muscles would be off the charts! Its distinctively long mouth is said to be harder than diamonds. Could the Ultra Beast also use it to attack?
The Ultra Beast with the codename UB-02 Beauty appears in Pokémon Moon. What kind of power does it possess? Its narrow, graceful legs allow it to accelerate with such explosive speed that people claim it can dodge lightning! It is said that any Pokémon that sees UB-02 Beauty, regardless of its own gender, will become infatuated with it and lose the will to battle. The exact reason for this reaction—whether it’s an unidentified pheromone exuded by UB-02 Beauty or a hypnotic effect induced by its appearance—has not been determined.
Still no word on whether you’ll be able to catch these mysterious creatures or what role they’ll play, though I do have a theory about UB-02 Beauty. What is it? None of your damn business, that’s what.