Quoted By:
That would get stale. They should either do Light, which could involve a rainbow type, or Sound which is another big contender. Ultrabeasts sort of cover what would have been manufactured, DNA, alien, etc. Pokemon.
I had thought that Pokemon should do two games that involve the character travelling to the past in one game, while travelling to the future in the other. This could involve gimmicky types, like Mech Pokemon like Magearna, or Future Pokemon that have their own unique typing. Or something along those lines.