The Upcoming Pokemon movie

So next year,we're having a pokemon movie reboot called Mewtwo strike back evolution.
It's believe to be set in the same universe as Pokemon I choose you and Pokemon The power of us. The original Mewtwo will make its reappearance. We are still waiting for more details for it. I do hope that the new pokemon Meltan will appear in next year's movie. Will we finally get Mewthree as well? 

Update: It's coming to be released on July 12 2019