The official Pokémon movie website has updated. Translations follow:
Media Information
Magazines:
Thursday June 13th: "Daily Sports" - Merchandise giveaway
Friday June 14th: "Corocoro Comic" - Information on the movie
*Note that these are the scheduled publication dates, and as such are subject to change without notice.
Source:
https://www.pokemon-movie.jp/news/?p=3660