McDonald's Japan has announced that a Pokémon the Movie: Coco Happy Set campaign will take place at participating locations in Japan starting on June 19th, 2020. The campaign was obviously planned to take place before the movie was postponed and couldn't be rescheduled. There are 6 different toys that will be distributed during 4 time periods.

Time Periods:

Week 1: June 19th, 2020 to June 25th, 2020 - Pikachu Periscope (ピカチュウのペリスコープ) and Pikachu Sun Vizor (ピカチュウのサンバイザー)
Week 2: June 26th, 2020 to July 2nd, 2020 - Pikachu Compass (ピカチュウのコンパス) and Pikachu Whistle (ピカチュウのホイッスル)
Week 3: July 3rd, 2020 to July 9th, 2020 - Pikachu Magnifying Glass (ピカチュウの拡大鏡) and Pikachu Shovel and Rake Set (ピカチュウのスコップ&くまでセット)
Week 4: Starting July 10th, 2020 - Item at random


On the weekend of June 20th, 2020 and June 21st, 2020, a Happy Set Pokémon Maze and Sticker Book will also be distributed while supplies last at particating stores starting at 5:00am at the 24-hour locations.

Source: https://www.mcdonalds.co.jp/family/happyset/detail01/

YouTube Clip - Pokémon the Movie: Coco Happy Set

Original YouTube Source: https://www.youtube.com/watch?v=HqhZZD48lXw