The official Pokémon movie website has updated. Translations follow:

Media Information

Magazines
Tuesday, July 10th, 2018 - "Cinema ★ Cinema" PR Goods Present
Wednesday, July 11th, 2018 - "TV LIFE" PR Goods Present
Wednesday, July 11th, 2018 - "Weekly TV Guide" PR Goods Present
Thursday, July 12th, 2018 - "Yomiuri Kodomo Newspaper" Interview (Mana Ashida)
Friday, July 13th, 2018 - "Pokémon Newspaper" Interview (Mana Ashida, Rina Kawaei, Gaku Hamada)
Friday, July 13th, 2018 - "Pokémon Fan" Presentation of Goods
Saturday, July 14th, 2018 - "CoroCoro Comic" Presentation of Film News

Television
Sunday, July 8th, 2018 - TV Tokyo - "Pokénchi" Pre-release feature
Monday, July 9th, 2018 - TV Tokyo - "Oha Suta" Pre-release feature
Tuesday, July 10th, 2018 - TV Tokyo - "Oha Suta" Pre-release feature
Wednesday, July 11th, 2018 - TV Tokyo - "Oha Suta" Pre-release feature
Thursday, July 12th, 2018 - TV Tokyo - "Oha Suta" Pre-release feature
Thursday, July 12th, 2018 - TV Tokyo - "Pokénchi 3 Hour Special!!" Broadcast of "Pocket Monsters the Movie: I Choose You!" · Movie Special Segments
Friday, July 13th, 2018 - TV Tokyo - "Oha Suta" Special Pre-release feature
Sunday, July 15th, 2018 - TV Tokyo - "Pokénchi" Release commemoration feature

*Note that these are the scheduled publication dates/air dates and as such are subject to change without notice. *Broadcast dates will vary depending on where you live. (some areas exempt) For details, please see the website of your local TV station.

Source: http://www.pokemon-movie.jp/news/?p=3425