>>37212046Shudo was also credited in M20. While M22 will probably follow the same story beats as M1, there's no chance in hell there wouldn't be some form of Gen 8 or Meltan shilling, and I can't see Meltan having an extensive arc in the anime since next year will be the end of SM, the premire of the movie, and the start of Gen 8. The movie will go gold in the Summer (as usual) during the middle of Gen 8's hype train.
Chances are they'll have the trainers from movie 1 use mega or new pokemon. They might just be replaced, and Misty/Brock are replaceable too.