What does the latest SunMoon news have to do with the anime, you ask?
Well, the anime follows the game and vice versa, Ash (or whoever the protagonist is) will be having a Rotom Pokedex, so, that's why Prof Oak wanted to research Rotom, guess he found out he could do this with it. Does this mean, Ash's first Pokemon will be Rotom next season? Can he use it in battle? Can you now carry 7 Pokemon?