The Pokémon Company, which oversees all things Pokémon, currently has a job listing for a Principal Game Designer. Granted, companies have job listings all the time; businesses need employees in order to exist, etc. But this job listing is for “an upcoming mobile game,” so if we put two and two together, there is a new Pokémon mobile game in the works. The job location is further listed as Bellevue, WA, the home of the Pokémon Company, so this game doesn’t appear involved with Niantic, the maker of Pokémon GO.
This game could be virtually anything, from something completely new to just a companion app/game for the new Pokémon games being cooked up for Switch. Or it could be another Bejeweled knockoff. Who knows? Let the wild speculation commence!