Do you think that Zinnia will appear in the next Pokémon game series?

[Pokemon Trainer]

I don't think that we will see her again they already used her a lot in the Delta episode (there's still something left that can be expained but I doubt they will tell us something )

 

[Shinso Vampire Nagato]

At most I can see either her either being mentioned or having a brief appearance post-ending, or being a Move Tutor that teaches Dragon Ascent to Rayquaza.

 

[Pokemon Trainer]

At most I can see either her either being mentioned or having a brief appearance post-ending, or being a Move Tutor that teaches Dragon Ascent to Rayquaza.

The move tutor seems an interesting idea