Anime / Pokémon: I Choose You!
Aim to be a Pokémon Master...
Pokémon: I Choose You! is the 20th Pokémon movie, revealed on December 14, 2016. Scheduled to be released in Japan on July 15, 2017, not much is known about the movie apart from the fact that it will feature the legendary Ho-Oh and the Kanto region, and harken back to the original series in some way.

Tropes that this movie provides:

  • Alternate Continuity: The entire movie deviates rather heavily from the anime's story with many points:
    • Ho-oh - having been dropped off from the main story without a proper introduction - being the focus of the journey, being from Generation II.
    • Ash having entirely different companions that aren't Misty or Brock, or any other known traveling companion. Furthermore, said companions have Pokémon that aren't part of the currently advertised generations (specifically Generation IV: Piplup and Lucario, which are Breakout Characters from their home games and anime season).
    • Generation VII having Marshadow joining Ash and his companions, with another trainer possessing Incineroar and Midnight Lycanroc.
  • Mythology Gag: Already present in the first preview, considering the nature of the movie.
    • Ho-Oh, who appeared in the first episode, has been shown prominently.
    • The title of the movie is the title of the first episode of the anime.
    • Ash is wearing a slightly modified version of his Indigo League attire. The symbol on his cap is a mix of his Kanto and Alola caps, and the original symbol can be seen on his backpack.
    • An old man appears in the second trailer, wearing a cap and jacket very similar to those worn by Red in Pokémon Red and Blue.
    • The trailer music is a remix of "Mezase Pokémon Master", the first Japanese opening.
  • Retraux: An odd example, in that the movie returns to the artstyle of the XY saga (which is essentially an evolution of the art style that the series had used from the beginning), rather than going with the unique style of the concurrent Sun & Moon anime.
  • Revisiting the Roots: The first trailer is heavily based on the Indigo League season of the anime.
  • Something Completely Different: This movie breaks away from the formula from the previous movies. In particular:
    • It doesn't take place in Alola with the current cast, as previous movies "fit in" with the concurrent season airing at the time.
    • It doesn't feature the either of the current generation's cover legendaries. Since the third generation, the first movie to follow a launch of a new Pokémon generation had one or both cover legendaries as a major focus.
    • While it does feature Marshadow, a Mythical Pokémon (Pokémon that can only be gotten from real-life events) from the current generation, its not the main focus of the movie.