The newest Pokémon movie has officially begun airing in Japanese cinemas today. At the end of the film, the title for next year’s movie was displayed. From reports, the title is “Mewtwo Strikes Back Evolution”, with “Evolution” appended to the rest of the title (ミュウツーの逆襲) in English. Mewtwo Strikes Back is the title of the first Pokémon movie.

No further details are yet available. What are your thoughts on a call-back to the very first movie?

Thanks to Chase for the tip.
Information from Serebii.net.