Please, stop being so desperated for a new game, there's tons of other games for you to play if you're bored, if we get a new pokemon game this year, cool!, if we don't, then cool too!, because the game will probably be better than a rushed one, but don't just be looking at everything like it's a hint for a new game, because you will be dissapointed when you realize it's nothing.
also
>But a strong enemy appears before them
That line is talking about Cross and his incineroar, who are the main antagonist of the movie.
It would be pretty weird to just throw both the third legendary and a mythical into the movie, especially considering that Necrozma is tied to the ultra beast and as such he's more likely to appear in a movie with them.
