ShadowForce720
Well-Known Member
Um, Magearna has already appeared. Marshadow will appear in M20. Necrozma is left. Solgaleo-Lunala will probably appear in the anime series in the Aether foundation arc. Same for the UB's. So I can't see who will star in the next movie, until something like the Manaphy movie happens again.
Easy they can easily have Necrozma star in the next movie and then have gen 8 pokemon star in movie 22 and if they want to make it last 4 years then they could have a gen 8 pokemon star in movie 23 as well.